If she were alive Monday, Rosa Parks would have celebrated her 100th birthday.
To commemorate the occasion, the U.S. Postal Service Monday released a new stamp in honor of the civil rights advocate. The Rosa Parks Forever Stamp is available for purchase at any post office nationwide as well as online.
Parks was arrested in 1955 for refusing to give up her seat to a white man on a Montgomery, Ala., bus. She later moved to Detroit, where she died in 2005.