60th anniversary of Rosa Parks refusing to give up seat on bus

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Tuesday, December 1, 2015
Rosa Parks visits an exhibit illustrating her bus ride of December, 1955 at the National Civil Rights Museum in Memphis, Tenn., Saturday, July 15, 1995.
Rosa Parks visits an exhibit illustrating her bus ride of December, 1955 at the National Civil Rights Museum in Memphis, Tenn., Saturday, July 15, 1995.
AP Photo/Troy Glasgow

MONTGOMERY, Ala. (KGO) -- Dec. 1, 1955 was the day Rosa Parks became an icon for change. That was when the "Mother of the Modern Day Civil Rights Movement" refused to give up her bus seat to a white passenger.

Parks was arrested because segregation on buses was legal in Montgomery, Alabama, at the time.

That small act of civil disobedience grew into a bus boycott led by a little-known pastor, Martin Luther King Jr.

That boycott grew into the movement which eventually led to Supreme Court rulings banning segregation.

ABC News contributed to this story.