Born on Feb. 4, 1913, Monday would have been Rosa Parks’ 100th birthday. On Dec. 1, 1955, Parks refused to give up her seat to a white passenger on a city bus in Montgomery, Alabama. Her act of resistance led to a 13-month boycott of the Montgomery bus system that sparked the Civil Rights Movement.

Parks is famous for this single, albeit enormously significant, action, but at the expense that her lifelong dedication to resistance is often overlooked. Parks was a dedicated civil rights activist involved with the movement long before and after her historic action on the Montgomery bus.

Watch this feature about her life put out Monday by Democracy Now in time for her 100th birthday to learn more about the rich, lifelong history of resistance that defined who Rosa Parks actually was.