Martin Luther King Jr. Day celebrates the birthday of civil rights leader the Rev. Martin Luther King Jr., who won the Nobel Peace Prize in 1964. He was assassinated four years later.
This year, the holiday falls on Monday, January 16. It's a federal holiday, which means government agencies, banks and many corporate offices will be closed for the day.
Here's what's open and closed on Martin Luther King Jr. Day.
Nonessential government offices -- such as the Department of Motor Vehicles, public libraries and city offices -- will be closed. State and federal courthouses will also be closed. Be sure to check ahead for local guidelines.
The United States Postal Service will be closed Monday, so there will be no regular mail deliveries. Other delivery services -- including United Parcel Service and FedEx will be operating -- though FedEx Express and FedEx Ground Economy will have modified services.
The New York Stock Exchange and NASDAQ are closed Monday. It's a banking holiday, so most banks will not be open.
ATMs and online banking services will be available.
CNN contributed to this report.