01/18/2016 10:31 AM EST
In his famous “I have a dream” speech, Dr. Martin Luther King, Jr. called for freedom to ring from every mountainside in our great country. Encouraged by his message of peace and equality, the United States moved closer to becoming a more perfect union. We honor his legacy today and every day at public lands where everyone can be inspired. Photo of the Martin Luther King, Jr. Memorial in Washington, DC by Buddy Secor and photo of Dr. King during the March on Washington in 1963 courtesy of National Archives.