Nomad: a person without a permanent home who moves from place to place with the seasons. Agriculture: farming, or raising crops and livestock. Government: an organized system of leaders, delegates or assemblies that controls a community or country. Epidemic: the rapid spread of a disease through a population or region. Forage: to hunt or search for sources of food. Algonquian Language Group: certain American Indian groups who share the same language, including the Powhatan, Appamattuck, Pamunkey and Mattaponi. Siouan Language group: certain American Indian groups who share the same language, including Monacan and Mannahoac Iroquoian Language Group:. certain American Indian groups who share the same language, such as the Cherokee and Nottoway. Christopher Columbus: Italian navigator who led four voyages to North America under the flag of Spain.