Martin Luther King, Jr. Day is a United States federal holiday marking the birthday of Rev. Dr. Martin Luther King, Jr. It is observed on the third Monday of January each year, which is around the time of King's birthday, January 20.
King was the chief spokesman for nonviolent activism in the civil rights movement, which successfully protested racial discrimination in federal and state law.
"The Stone Of Hope" memorial by master sculptor Lei Yixin was opened to the public in West Potomac Park, Washington DC, on August 22, 2011.