Monday marked the 54th anniversary of perhaps the most famous speech delivered in the United States during the 20th century: the "I Have a Dream" speech of Martin Luther King Jr.

Delivered on the steps of the Lincoln Memorial during the March on Washington on August 28th, 1963, the speech has come to symbolize the Civil Rights Movement of the mid-20th century.

In the historic speech, King called for non-violence, brotherhood, sitting together, and letting "freedom ring," a far cry from organizations such as Black Lives Matter.

King was assassinated on April 4, 1968.