Simplify the following text for a Grade 4 native English-speaking person.
Original: One notable example is the 1963 March on Washington for Jobs and Freedom , a political rally for African American civil rights , at which Martin Luther King , Jr. gave his famous `` I Have a Dream '' speech .
Simplified: One of the most famous was the March on Washington for Jobs and Freedom in 1963 , where Martin Luther King , Jr. gave his I Have a Dream speech .