History 439
Study and teaching 267
Social life and customs 149
Politics and government 147
Management 132
Social conditions 102
Marketing 100
Motion pictures 100
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World War, 1939-1945 84
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Indians of North America 79
Social aspects 79
Vietnam War, 1961-1975 66
Economic conditions 60
Presidents 60
Climatic changes 59
Fashion designers 58
Biology 56
Fashion 56
Fashion shows 54
Prevention 54
Arduino (Programmable controller) 53
COVID-19 Pandemic, 2020- 53
Research 52
Women 50
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Programming 48
Psychological aspects 48
Description and travel 47
Short films 47
Environmental sciences 45
Personnel management 45
Physics 45
COVID-19 (Disease) 44
Computer programming 43
Foreign relations 43
Design and construction 42
Astronomy 40
Science 39
Patients 38
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Indian women 37
Training of 37
Indigenous women 36
Nursing 36
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Microcontrollers 33
Law and legislation 32
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Plants 31
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Finance, Personal 30
Literature 30
Production and direction 30
Choreographers 29
Computer software 29
Government policy 29
Modern dance 29
Advertising, Public service 28
Cognitive neuroscience 28
Photography 28
Botany 27
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Civil rights 27
Employees 27
Family relationships 27
Military weapons 27
Strategic planning 27
Treatment 27
Aboriginal Australians 26
Advertising 26
Animals 26
Dance 26
Gay men 26
Interpersonal communication 26
Race relations 26
African Americans 25
Airplanes 25
Global warming 25
Neuroplasticity 25
Assassination 24
Children 24
Dancers 24
Data processing 24
Exploration 24
Neuronal Plasticity 24
Adaptation 23
Digital techniques 23
Education 23
Emigration and immigration 23
Indigenous peoples 23
Medicine 23