Will banks, post offices and shipping services be open on MLK Day? Here's what you need to know for Monday, Jan. 20.

Donald Trump is set to make history as only the second president to be inaugurated on MLK Day. Can you guess the first?

Here's what you need to know about whether U.S. stock markets will be open on Martin Luther King Jr., Day this year.

Arizona didn't celebrate Martin Luther King Day until 1993, a decade after it became a federal holiday. Here's how the Super Bowl played a role.

January 20 marks Martin Luther King Jr. Day ... former President Ronald Reagan signed it into law later that year. The first national holiday honoring King was celebrated in 1986.

Here's everything you need to know about the upcoming holiday, why we celebrate it and why it's more than just a long-weekend.

Monday is Martin Luther King Jr. Day, the federal holiday honoring the life and legacy of the Civil Rights icon. California became one of the first states to recognize the contributions of King Jr. when Governor Jerry Brown signed legislation to create a state holiday honoring MLK Jr.

Family and others carrying on Martin Luther King Jr.'s legacy of equality, justice and nonviolent protest want Americans to remember that Monday's holiday is really about helping others.