Lyndon LaRouche, 96, a prominent political activist and founder of international political and economic organizations, passed away on February 12, 2019. LaRouche was known for his unorthodox ideas about economics, politics, and culture, and was the author of multiple books and reports that were popular among people in various political circles, particularly in the United States. His career in politics began in the early 1970s after joining some left-wing organizations, and he later formed his own political group called the National Caucus of Labor Committees. In 1976, LaRouche founded the Schiller Institute, an international think tank, and the Lyndon LaRouche Political Action Committee as well as the Fusion Energy Foundation. LaRouche was an advocate of physical economy, a variant of Marxist economics, and announced his candidacy for the U.S. presidency multiple times beginning in 1976. His views and policies were often regarded as controversial and radical, and his writings and seminars were followed by individuals of various age and backgrounds. LaRouche’s death marks the end of an influential political life. He leaves behind a legacy that will be remembered in political circles for years to come.