Monday is both Inauguration Day and Martin Luther King Jr. Day. Why it matters: The U.S. Postal Service, stock markets, banks and many schools are closed for the federal holiday, but not because it's the day President-elect Trump is sworn in as the 47th president.

Martin Luther King Jr. helped lead the Civil Rights Movement. Read about his “I Have a Dream” speech, quotes, holiday, kids, assassination, and more facts.

Several events are planned in Aurora on Monday to celebrate the legacy of the Rev. Martin Luther King Jr. on the holiday honoring the legendary Civil Rights leader.