It was 60 years ago Tuesday that Rosa Parks boarded a bus in Montgomery, Ala., and refused to give up her seat for a white passenger.

This small act of civil disobedience helped launch the Montgomery Bus Boycott and, over time, became an iconic moment in the battle for civil rights. It also made Parks a hero and a symbol of non-violent protest. “People always say that I didn’t give up my seat because I was tired, but that isn’t true,” Parks wrote later in her autobiography. “No, the only tired I was, was tired of giving in.”

Members of Congress and political candidates remembered Parks on Tuesday. Here is a look at their tributes online: