Example image of eyePlorer eyePlorer map for 'Lewis H. Morgan': 1818 1881 December 17 November 21 Union College New York Legislature American Association for the Advancement of Science United States National Academy of Sciences Native Americans in the United States Ely S. Parker Iroquois Seneca nation Tonawanda Reservation Consanguinity Smithsonian Institution Ancient Society Social evolution History of technology Social progress Barbarism Civilization Savage Agriculture Alphabet Bow (weapon) Domestication Fire Metalworking Pottery Writing Dialectical materialism Friedrich Engels The Origin of the Family, Private Property and the State University of Rochester 1881 in anthropology Classificatory kinship Lewis Morgan Chinese kinship Crow kinship Eskimo kinship Hawaiian kinship Iroquois kinship Omaha kinship Primitive communism Sudanese kinship 1877 in literature Gerhard Lenski 1870s in sociology Thomas Trautmann Tong Enzheng