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.

Arizona was one of the last states to recognize Martin Luther King Jr. Day as a holiday and the only state that required a public vote to do so.

It took a long and contentious fight to make Martin Luther King Jr. Day a state holiday in Arizona. The big picture: The movement to carve out a day to honor King began shortly after his 1968 assassination.

Martin Luther King Jr. Day is recognized across the nation, both as a state and national holiday, on the civil rights activist’s birthday, Jan. 20. The day serves as an

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

Martin Luther King Jr. Day is approaching — a day to celebrate and recognize the life of the man who inspired the federal holiday. Here’s what to know about Martin Luther King Jr. Day and where to celebrate in Houston.

Martin Luther King Jr. Day is a federal holiday, meaning that these offices and agencies are to be closed Monday.