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Who Was Dr. Martin Luther King, Jr.?
Today in Wonderopolis, you’ll meet a man whose famous dream changed the world. Happy Birthday, Dr. Martin Luther King, Jr.!
Who Was Dr. Martin Luther King, Jr.?
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Why Is It Called "Old Faithful"?
Today’s Wonder of the Day is sure to make you gush! Let’s learn about geysers.
Why Is It Called "Old Faithful"?