Around 1920-1930, during the Great Migration, a cultural movement of African-Americans began. It took place in Harlem but was to have a world impact. His purpose was to break down the stereotypes about black populations which were very badly seen at that time.

Many artists took part in this movement and used art to change the world vision. 

There were musicians, painters, writers, poets :

- some of the most famous jazz musicians were Dizzy Gillespie, Duke Ellington, Louis Armstrong ;

- Aaron Douglas, Archibald Motley, Charles Alston were some of the iconic painters of the cultural movement ;

- Langston Hughes, who wrote jazz poetry and the poem below, tells the story of his life and that of many other black people at that time :

I, too, sing America.

I am the darker brother.

They send me to eat in the kitchen
When company comes,
But I laugh,
And eat well,
And grow strong.

Tomorrow,
I'll be at the table
When company comes.
Nobody'll dare
Say to me,
“Eat in the kitchen,”
Then.

Besides,
They'll see how beautiful I am
And be ashamed

I, too, am America.

Langston Hughes, "I, Too", 1926

This movement through culture, art and music has served to reduce racial discrimination, poverty and crimes against African-American populations through their culture, art and music.