In 1821, at the age of 77, Jefferson began writing his autobiography, in order to "state some recollections of dates and facts concerning myself". He focused on the struggles and achievements he experienced until July 29, 1790, where the narrative stopped short. He excluded his youth, emphasizing the revolutionary era. He related that his ancestors came from Wales to America in the early 17th century and settled in the western frontier of the Virginia colony, which influenced his zeal for individual and state rights. Jefferson described his father as uneducated, but with a "strong mind and sound judgement". His enrollment in the College of William and Mary and election to the Continental Congress in Philadelphia in 1775 were included.