Author: William E. Doolittle
Publisher: University of Texas Press
ISBN: 0292772130
Category : History
Languages : en
Pages : 220
Book Description
Prehistoric farmers in Mexico invented irrigation, developed it into a science, and used it widely. Indeed, many of the canal systems still in use in Mexico today were originally begun well before the discovery of the New World. In this comprehensive study, William E. Doolittle synthesizes and extensively analyzes all that is currently known about the development and use of irrigation technology in prehistoric Mexico from about 1200 B.C. until the Spanish conquest in the sixteenth century A.D. Unlike authors of previous studies who have focused on the political, economic, and social implications of irrigation, Doolittle considers it in a developmental context. He examines virtually all the known systems, from small canals that diverted runoff from ephemeral mountain streams to elaborate networks that involved numerous large canals to irrigate broad valley floors with water from perennial rivers. Throughout the discussion, he gives special emphasis to the technological elaborations that distinguish each system from its predecessors. He also traces the spread of canal technology into and through different ecological settings. This research substantially clarifies the relationship between irrigation technology in Mexico and the American Southwest and argues persuasively that much of the technology that has been attributed to the Spaniards was actually developed in Mexico by indigenous people. These findings will be important not only for archaeologists working in this area but also for geographers, historians, and engineers interested in agriculture, technology, and arid lands.
Canal Irrigation in Prehistoric Mexico
Author: William E. Doolittle
Publisher: University of Texas Press
ISBN: 0292772130
Category : History
Languages : en
Pages : 220
Book Description
Prehistoric farmers in Mexico invented irrigation, developed it into a science, and used it widely. Indeed, many of the canal systems still in use in Mexico today were originally begun well before the discovery of the New World. In this comprehensive study, William E. Doolittle synthesizes and extensively analyzes all that is currently known about the development and use of irrigation technology in prehistoric Mexico from about 1200 B.C. until the Spanish conquest in the sixteenth century A.D. Unlike authors of previous studies who have focused on the political, economic, and social implications of irrigation, Doolittle considers it in a developmental context. He examines virtually all the known systems, from small canals that diverted runoff from ephemeral mountain streams to elaborate networks that involved numerous large canals to irrigate broad valley floors with water from perennial rivers. Throughout the discussion, he gives special emphasis to the technological elaborations that distinguish each system from its predecessors. He also traces the spread of canal technology into and through different ecological settings. This research substantially clarifies the relationship between irrigation technology in Mexico and the American Southwest and argues persuasively that much of the technology that has been attributed to the Spaniards was actually developed in Mexico by indigenous people. These findings will be important not only for archaeologists working in this area but also for geographers, historians, and engineers interested in agriculture, technology, and arid lands.
Publisher: University of Texas Press
ISBN: 0292772130
Category : History
Languages : en
Pages : 220
Book Description
Prehistoric farmers in Mexico invented irrigation, developed it into a science, and used it widely. Indeed, many of the canal systems still in use in Mexico today were originally begun well before the discovery of the New World. In this comprehensive study, William E. Doolittle synthesizes and extensively analyzes all that is currently known about the development and use of irrigation technology in prehistoric Mexico from about 1200 B.C. until the Spanish conquest in the sixteenth century A.D. Unlike authors of previous studies who have focused on the political, economic, and social implications of irrigation, Doolittle considers it in a developmental context. He examines virtually all the known systems, from small canals that diverted runoff from ephemeral mountain streams to elaborate networks that involved numerous large canals to irrigate broad valley floors with water from perennial rivers. Throughout the discussion, he gives special emphasis to the technological elaborations that distinguish each system from its predecessors. He also traces the spread of canal technology into and through different ecological settings. This research substantially clarifies the relationship between irrigation technology in Mexico and the American Southwest and argues persuasively that much of the technology that has been attributed to the Spaniards was actually developed in Mexico by indigenous people. These findings will be important not only for archaeologists working in this area but also for geographers, historians, and engineers interested in agriculture, technology, and arid lands.
Canal Irrigation in Prehistoric Mexico
Author: William E. Doolittle
Publisher: University of Texas Press
ISBN: 0292729537
Category : Social Science
Languages : en
Pages : 220
Book Description
Prehistoric farmers in Mexico invented irrigation, developed it into a science, and used it widely. Indeed, many of the canal systems still in use in Mexico today were originally begun well before the discovery of the New World. In this comprehensive study, William E. Doolittle synthesizes and extensively analyzes all that is currently known about the development and use of irrigation technology in prehistoric Mexico from about 1200 B.C. until the Spanish conquest in the sixteenth century A.D. Unlike authors of previous studies who have focused on the political, economic, and social implications of irrigation, Doolittle considers it in a developmental context. He examines virtually all the known systems, from small canals that diverted runoff from ephemeral mountain streams to elaborate networks that involved numerous large canals to irrigate broad valley floors with water from perennial rivers. Throughout the discussion, he gives special emphasis to the technological elaborations that distinguish each system from its predecessors. He also traces the spread of canal technology into and through different ecological settings. This research substantially clarifies the relationship between irrigation technology in Mexico and the American Southwest and argues persuasively that much of the technology that has been attributed to the Spaniards was actually developed in Mexico by indigenous people. These findings will be important not only for archaeologists working in this area but also for geographers, historians, and engineers interested in agriculture, technology, and arid lands.
Publisher: University of Texas Press
ISBN: 0292729537
Category : Social Science
Languages : en
Pages : 220
Book Description
Prehistoric farmers in Mexico invented irrigation, developed it into a science, and used it widely. Indeed, many of the canal systems still in use in Mexico today were originally begun well before the discovery of the New World. In this comprehensive study, William E. Doolittle synthesizes and extensively analyzes all that is currently known about the development and use of irrigation technology in prehistoric Mexico from about 1200 B.C. until the Spanish conquest in the sixteenth century A.D. Unlike authors of previous studies who have focused on the political, economic, and social implications of irrigation, Doolittle considers it in a developmental context. He examines virtually all the known systems, from small canals that diverted runoff from ephemeral mountain streams to elaborate networks that involved numerous large canals to irrigate broad valley floors with water from perennial rivers. Throughout the discussion, he gives special emphasis to the technological elaborations that distinguish each system from its predecessors. He also traces the spread of canal technology into and through different ecological settings. This research substantially clarifies the relationship between irrigation technology in Mexico and the American Southwest and argues persuasively that much of the technology that has been attributed to the Spaniards was actually developed in Mexico by indigenous people. These findings will be important not only for archaeologists working in this area but also for geographers, historians, and engineers interested in agriculture, technology, and arid lands.
Ancient Water Technologies
Author: L. Mays
Publisher: Springer Science & Business Media
ISBN: 9048186323
Category : Technology & Engineering
Languages : en
Pages : 286
Book Description
There is no more fundamental resource than water. The basis of all life, water is fast becoming a key issue in today’s world, as well as a source of conflict. This fascinating book, which sets out many of the ingenious methods by which ancient societies gathered, transported and stored water, is a timely publication as overextraction and profligacy threaten the existence of aquifers and watercourses that have supplied our needs for millennia. It provides an overview of the water technologies developed by a number of ancient civilizations, from those of Mesopotamia and the Indus valley to later societies such as the Mycenaeans, Minoans, Persians, and the ancient Egyptians. Of course, no book on ancient water technologies would be complete without discussing the engineering feats of the Romans and Greeks, yet as well as covering these key civilizations, it also examines how ancient American societies from the Hohokams to the Mayans and Incas husbanded their water supplies. This unusually wide-ranging text could offer today’s parched world some solutions to the impending crisis in our water supply. "This book provides valuable insights into the water technologies developed in ancient civilizations which are the underpinning of modern achievements in water engineering and management practices. It is the best proof that "the past is the key for the future." Andreas N. Angelakis, Hellenic Water Supply and Sewerage Systems Association, Greece "This book makes a fundamental contribution to what will become the most important challenge of our civilization facing the global crisis: the problem of water. Ancient Water Technologies provides a complete panorama of how ancient societies confronted themselves with the management of water. The role of this volume is to provide, for the first time on this issue, an extensive historical and scientific reconstruction and an indication of how traditional knowledge may be employed to ensure a sustainable future for all." Pietro Laureano, UNESCO expert for ecosystems at risk, Director of IPOGEA-Institute of Traditional Knowledge, Italy
Publisher: Springer Science & Business Media
ISBN: 9048186323
Category : Technology & Engineering
Languages : en
Pages : 286
Book Description
There is no more fundamental resource than water. The basis of all life, water is fast becoming a key issue in today’s world, as well as a source of conflict. This fascinating book, which sets out many of the ingenious methods by which ancient societies gathered, transported and stored water, is a timely publication as overextraction and profligacy threaten the existence of aquifers and watercourses that have supplied our needs for millennia. It provides an overview of the water technologies developed by a number of ancient civilizations, from those of Mesopotamia and the Indus valley to later societies such as the Mycenaeans, Minoans, Persians, and the ancient Egyptians. Of course, no book on ancient water technologies would be complete without discussing the engineering feats of the Romans and Greeks, yet as well as covering these key civilizations, it also examines how ancient American societies from the Hohokams to the Mayans and Incas husbanded their water supplies. This unusually wide-ranging text could offer today’s parched world some solutions to the impending crisis in our water supply. "This book provides valuable insights into the water technologies developed in ancient civilizations which are the underpinning of modern achievements in water engineering and management practices. It is the best proof that "the past is the key for the future." Andreas N. Angelakis, Hellenic Water Supply and Sewerage Systems Association, Greece "This book makes a fundamental contribution to what will become the most important challenge of our civilization facing the global crisis: the problem of water. Ancient Water Technologies provides a complete panorama of how ancient societies confronted themselves with the management of water. The role of this volume is to provide, for the first time on this issue, an extensive historical and scientific reconstruction and an indication of how traditional knowledge may be employed to ensure a sustainable future for all." Pietro Laureano, UNESCO expert for ecosystems at risk, Director of IPOGEA-Institute of Traditional Knowledge, Italy
Agricultural Intensification and Prehistoric Health in the Valley of Oaxaca, Mexico
Author: Denise C. Hodges
Publisher: U OF M MUSEUM ANTHRO ARCHAEOLOGY
ISBN: 9780915703166
Category : Social Science
Languages : en
Pages : 0
Book Description
Author Denise C. Hodges examines the osteological remains from 14 archaeological sites in the Valley of Oaxaca, Mexico, in an attempt to address the relationship between the intensification of agriculture and the health status of the prehistoric population. Volume 9 of the subseries Prehistory and Human Ecology of the Valley of Oaxaca.
Publisher: U OF M MUSEUM ANTHRO ARCHAEOLOGY
ISBN: 9780915703166
Category : Social Science
Languages : en
Pages : 0
Book Description
Author Denise C. Hodges examines the osteological remains from 14 archaeological sites in the Valley of Oaxaca, Mexico, in an attempt to address the relationship between the intensification of agriculture and the health status of the prehistoric population. Volume 9 of the subseries Prehistory and Human Ecology of the Valley of Oaxaca.
ARCHAEOLOGY – Volume I
Author: Donald L. Hardesty
Publisher: EOLSS Publications
ISBN: 1848260024
Category :
Languages : en
Pages : 518
Book Description
Archaeology is a component of Encyclopedia of Social Sciences and Humanities in the global Encyclopedia of Life Support Systems (EOLSS), which is an integrated compendium of twenty one Encyclopedias. Archaeology is a road for traveling into the past that is independent of and complementary to documents and memory. The archaeological record provides historical perspectives on variability and change in human life support systems with the potential for use in planning for future sustainable development. The Theme is organized into four different topics which represent the main scientific areas of the theme: - Foundations of Archaeology; - The Archaeology of Life Support Systems; - World Cultural Heritage; - Preserving Archaeological Sites and Monuments which are then expanded into multiple subtopics, each as a chapter. The first topic deals with historical, methodological, and theoretical foundations of archaeology. The second topic explores the archaeological record of human life support systems and includes chapters on foraging, food production such as farming and nomadic lifestyles, civilizations, water-management systems, and sustainability. World cultural heritage is the third topic. Finally, the fourth topic covers the preservation of cultural memorials such as archaeological sites, landscapes, and monuments. These two volumes are aimed at the following five major target audiences: University and College Students Educators, Professional Practitioners, Research Personnel and Policy Analysts, Managers, and Decision Makers, NGOs and GOs.
Publisher: EOLSS Publications
ISBN: 1848260024
Category :
Languages : en
Pages : 518
Book Description
Archaeology is a component of Encyclopedia of Social Sciences and Humanities in the global Encyclopedia of Life Support Systems (EOLSS), which is an integrated compendium of twenty one Encyclopedias. Archaeology is a road for traveling into the past that is independent of and complementary to documents and memory. The archaeological record provides historical perspectives on variability and change in human life support systems with the potential for use in planning for future sustainable development. The Theme is organized into four different topics which represent the main scientific areas of the theme: - Foundations of Archaeology; - The Archaeology of Life Support Systems; - World Cultural Heritage; - Preserving Archaeological Sites and Monuments which are then expanded into multiple subtopics, each as a chapter. The first topic deals with historical, methodological, and theoretical foundations of archaeology. The second topic explores the archaeological record of human life support systems and includes chapters on foraging, food production such as farming and nomadic lifestyles, civilizations, water-management systems, and sustainability. World cultural heritage is the third topic. Finally, the fourth topic covers the preservation of cultural memorials such as archaeological sites, landscapes, and monuments. These two volumes are aimed at the following five major target audiences: University and College Students Educators, Professional Practitioners, Research Personnel and Policy Analysts, Managers, and Decision Makers, NGOs and GOs.
Precolumbian Water Management
Author: Lisa Joyce Lucero
Publisher: University of Arizona Press
ISBN: 9780816523146
Category : Social Science
Languages : en
Pages : 328
Book Description
Among ancient Mesoamerican and Southwestern peoples, water was as essential as maize for sustenance and was a driving force in the development of complex society. Control of water shaped the political, economic, and religious landscape of the ancient Americas, yet it is often overlooked in Precolumbian studies. Now one volume offers the latest thinking on water systems and their place within the ancient physical and mental language of the region. Precolumbian Water Management examines water management from both economic and symbolic perspectives. Water management facilities, settlement patterns, shrines, and water-related imagery associated with civic-ceremonial and residential architecture provide evidence that water systems pervade all aspects of ancient society. Through analysis of such data, the contributors seek to combine an understanding of imagery and the religious aspects of water with its functional components, thereby presenting a unified perspective of how water was conceived, used, and represented in ancient greater Mesoamerica. The collection boasts broad chronological and geographical coverageÑfrom the irrigation networks of Teotihuacan to the use of ritual water technology at Casas GrandesÑthat shows how procurement and storage systems were adapted to local conditions. The articles consider the mechanisms that were used to build upon the sacredness of water to enhance political authority through time and space and show that water was not merely an essential natural resource but an important spiritual one as well, and that its manipulation was socially far more complex than might appear at first glance. As these papers reveal, an understanding of materials associated with water can contribute much to the ways that archaeologists study ancient cultural systems. Precolumbian Water Management underscores the importance of water management research and the need to include it in archaeological projects of all types.
Publisher: University of Arizona Press
ISBN: 9780816523146
Category : Social Science
Languages : en
Pages : 328
Book Description
Among ancient Mesoamerican and Southwestern peoples, water was as essential as maize for sustenance and was a driving force in the development of complex society. Control of water shaped the political, economic, and religious landscape of the ancient Americas, yet it is often overlooked in Precolumbian studies. Now one volume offers the latest thinking on water systems and their place within the ancient physical and mental language of the region. Precolumbian Water Management examines water management from both economic and symbolic perspectives. Water management facilities, settlement patterns, shrines, and water-related imagery associated with civic-ceremonial and residential architecture provide evidence that water systems pervade all aspects of ancient society. Through analysis of such data, the contributors seek to combine an understanding of imagery and the religious aspects of water with its functional components, thereby presenting a unified perspective of how water was conceived, used, and represented in ancient greater Mesoamerica. The collection boasts broad chronological and geographical coverageÑfrom the irrigation networks of Teotihuacan to the use of ritual water technology at Casas GrandesÑthat shows how procurement and storage systems were adapted to local conditions. The articles consider the mechanisms that were used to build upon the sacredness of water to enhance political authority through time and space and show that water was not merely an essential natural resource but an important spiritual one as well, and that its manipulation was socially far more complex than might appear at first glance. As these papers reveal, an understanding of materials associated with water can contribute much to the ways that archaeologists study ancient cultural systems. Precolumbian Water Management underscores the importance of water management research and the need to include it in archaeological projects of all types.
Traditional Arid Lands Agriculture
Author: Scott E. Ingram
Publisher: University of Arizona Press
ISBN: 0816531293
Category : Social Science
Languages : en
Pages : 391
Book Description
Traditional Arid Lands Agriculture is the first of its kind. Each chapter considers four questions: what we don’t know about specific aspects of traditional agriculture, why we need to know more, how we can know more, and what research questions can be pursued to know more. What is known is presented to provide context for what is unknown. Traditional agriculture, nonindustrial plant cultivation for human use, is practiced worldwide by millions of smallholder farmers in arid lands. Advancing an understanding of traditional agriculture can improve its practice and contribute to understanding the past. Traditional agriculture has been practiced in the U.S. Southwest and northwest Mexico for at least four thousand years and intensely studied for at least one hundred years. What is not known or well-understood about traditional arid lands agriculture in this region has broad application for research, policy, and agricultural practices in arid lands worldwide. The authors represent the disciplines of archaeology, anthropology, agronomy, art, botany, geomorphology, paleoclimatology, and pedology. This multidisciplinary book will engage students, practitioners, scholars, and any interested in understanding and advancing traditional agriculture.
Publisher: University of Arizona Press
ISBN: 0816531293
Category : Social Science
Languages : en
Pages : 391
Book Description
Traditional Arid Lands Agriculture is the first of its kind. Each chapter considers four questions: what we don’t know about specific aspects of traditional agriculture, why we need to know more, how we can know more, and what research questions can be pursued to know more. What is known is presented to provide context for what is unknown. Traditional agriculture, nonindustrial plant cultivation for human use, is practiced worldwide by millions of smallholder farmers in arid lands. Advancing an understanding of traditional agriculture can improve its practice and contribute to understanding the past. Traditional agriculture has been practiced in the U.S. Southwest and northwest Mexico for at least four thousand years and intensely studied for at least one hundred years. What is not known or well-understood about traditional arid lands agriculture in this region has broad application for research, policy, and agricultural practices in arid lands worldwide. The authors represent the disciplines of archaeology, anthropology, agronomy, art, botany, geomorphology, paleoclimatology, and pedology. This multidisciplinary book will engage students, practitioners, scholars, and any interested in understanding and advancing traditional agriculture.
Advances in Plant Pathology
Author:
Publisher: Elsevier
ISBN: 0080526780
Category : Science
Languages : en
Pages : 333
Book Description
This volume focuses on issues of plant pathology and sustainability, such as short term economic plans versus long term economic visions in farming and forestry. The book also deals with the complex biological interactions governing success in minimizing pest or pathogen damage by biological or chemical strategies, benefits and costs to the producer, consequences for the environment of management options, and the challenge of defining useful farm or forest indicatorsof sustainable practices.
Publisher: Elsevier
ISBN: 0080526780
Category : Science
Languages : en
Pages : 333
Book Description
This volume focuses on issues of plant pathology and sustainability, such as short term economic plans versus long term economic visions in farming and forestry. The book also deals with the complex biological interactions governing success in minimizing pest or pathogen damage by biological or chemical strategies, benefits and costs to the producer, consequences for the environment of management options, and the challenge of defining useful farm or forest indicatorsof sustainable practices.
Evolution of Water Supply Through the Millennia
Author: Andreas N. Angelakis
Publisher: IWA Publishing
ISBN: 1843395401
Category : Science
Languages : en
Pages : 585
Book Description
Evolution of Water Supply Through the Millennia presents the major achievements in the scientific fields of water supply technologies and management throughout the millennia. It provides valuable insights into ancient water supply technologies with their apparent characteristics of durability, adaptability to the environment, and sustainability. A comparison of the water technological developments in several civilizations is undertaken. These technologies are the underpinning of modern achievements in water engineering and management practices. It is the best proof that “the past is the key for the future.” Rapid technological progress in the twentieth century created a disregard for past water technologies that were considered to be far behind the present ones. There are a great deal of unresolved problems related to the management principles, such as the decentralization of the processes, the durability of the water projects, the cost effectiveness, and sustainability issues such as protection from floods and droughts. In the developing world, such problems were intensified to an unprecedented degree. Moreover, new problems have arisen such as the contamination of surface and groundwater. Naturally, intensification of unresolved problems led societies to revisit the past and to reinvestigate the successful past achievements. To their surprise, those who attempted this retrospect, based on archaeological, historical, and technical evidence were impressed by two things: the similarity of principles with present ones and the advanced level of water engineering and management practices. Evolution of Water Supply Through the Millennia is intended for engineers in water resources companies, hydraulic design companies, and water Institutes. It can be used for all courses related to water resources. Authors: Andreas N. Angelakis, Institute of Iraklion, National Foundation for Agricultural Research (N.AG.RE.F.), Greece, Larry W. Mays, School of Sustainable Engineering and the Built Environment, Arizona State University, USA, Demetris Koutsoyiannis, School of Civil Engineering, National Technical University of Athens, Greece, Nikos Manassis, School of Civil Engineering, National Technical University of Athens, Greece.
Publisher: IWA Publishing
ISBN: 1843395401
Category : Science
Languages : en
Pages : 585
Book Description
Evolution of Water Supply Through the Millennia presents the major achievements in the scientific fields of water supply technologies and management throughout the millennia. It provides valuable insights into ancient water supply technologies with their apparent characteristics of durability, adaptability to the environment, and sustainability. A comparison of the water technological developments in several civilizations is undertaken. These technologies are the underpinning of modern achievements in water engineering and management practices. It is the best proof that “the past is the key for the future.” Rapid technological progress in the twentieth century created a disregard for past water technologies that were considered to be far behind the present ones. There are a great deal of unresolved problems related to the management principles, such as the decentralization of the processes, the durability of the water projects, the cost effectiveness, and sustainability issues such as protection from floods and droughts. In the developing world, such problems were intensified to an unprecedented degree. Moreover, new problems have arisen such as the contamination of surface and groundwater. Naturally, intensification of unresolved problems led societies to revisit the past and to reinvestigate the successful past achievements. To their surprise, those who attempted this retrospect, based on archaeological, historical, and technical evidence were impressed by two things: the similarity of principles with present ones and the advanced level of water engineering and management practices. Evolution of Water Supply Through the Millennia is intended for engineers in water resources companies, hydraulic design companies, and water Institutes. It can be used for all courses related to water resources. Authors: Andreas N. Angelakis, Institute of Iraklion, National Foundation for Agricultural Research (N.AG.RE.F.), Greece, Larry W. Mays, School of Sustainable Engineering and the Built Environment, Arizona State University, USA, Demetris Koutsoyiannis, School of Civil Engineering, National Technical University of Athens, Greece, Nikos Manassis, School of Civil Engineering, National Technical University of Athens, Greece.
Que Vivan Los Tamales!
Author: Jeffrey M. Pilcher
Publisher: UNM Press
ISBN: 9780826318732
Category : Cooking
Languages : en
Pages : 252
Book Description
Connections between what people eat and who they are--between cuisine and identity--reach deep into Mexican history, beginning with pre-Columbian inhabitants offering sacrifices of human flesh to maize gods in hope of securing plentiful crops. This cultural history of food in Mexico traces the influence of gender, race, and class on food preferences from Aztec times to the present and relates cuisine to the formation of national identity. The metate and mano, used by women for grinding corn and chiles since pre-Columbian times, remained essential to preparing such Mexican foods as tamales, tortillas, and mole poblano well into the twentieth century. Part of the ongoing effort by intellectuals and political leaders to Europeanize Mexico was an attempt to replace corn with wheat. But native foods and flavors persisted and became an essential part of indigenista ideology and what it meant to be authentically Mexican after 1940, when a growing urban middle class appropriated the popular native foods of the lower class and proclaimed them as national cuisine.
Publisher: UNM Press
ISBN: 9780826318732
Category : Cooking
Languages : en
Pages : 252
Book Description
Connections between what people eat and who they are--between cuisine and identity--reach deep into Mexican history, beginning with pre-Columbian inhabitants offering sacrifices of human flesh to maize gods in hope of securing plentiful crops. This cultural history of food in Mexico traces the influence of gender, race, and class on food preferences from Aztec times to the present and relates cuisine to the formation of national identity. The metate and mano, used by women for grinding corn and chiles since pre-Columbian times, remained essential to preparing such Mexican foods as tamales, tortillas, and mole poblano well into the twentieth century. Part of the ongoing effort by intellectuals and political leaders to Europeanize Mexico was an attempt to replace corn with wheat. But native foods and flavors persisted and became an essential part of indigenista ideology and what it meant to be authentically Mexican after 1940, when a growing urban middle class appropriated the popular native foods of the lower class and proclaimed them as national cuisine.