David Nolan was an American political activist and the co-founder of the Libertarian Party in 1971. He played a significant role in promoting libertarian principles, which emphasize individual liberty, limited government, and free markets. Nolan is best known for creating the Nolan Chart, a graphical representation of political ideologies that illustrates the spectrum of political beliefs beyond the traditional left-right dichotomy. Nolan was born on January 1, 1943, in New York City and later moved to California. Throughout his life, he was involved in various political movements and campaigns, advocating for civil liberties and personal freedom. He passed away on February 9, 2010, leaving a lasting impact on the libertarian movement.