demonstration, manifestation - a public display of group feelings (usually of a political nature); "there were violent demonstrations against the war"

history - the discipline that records and interprets past events involving human beings; "he teaches Medieval history"; "history takes the long view"

U.S.A., United States, United States of America, US, USA, America, U.S. - North American republic containing 50 states - 48 conterminous states in North America plus Alaska in northwest North America and the Hawaiian Islands in the Pacific Ocean; achieved independence in 1776