Politicians, celebs honor Martin Luther King Jr.

Civil rights activist Martin Luther King Jr. is celebrated each year on MLK Jr. Day and throughout February for Black History Month.

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The Atlanta-born Baptist minister encouraged equality, desegregation and civil disobedience as a way to stand for change.

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Each year, Americans remember him and honor him, and many celebreties and politicians took to social media on Monday to recognize King's contributions and his role in American history.