In the fall of 1950, Nat 'Sweetwater' Clifton makes history in his journey to become the first African American to sign an NBA contract, forever changing the game of basketball.In the fall of 1950, Nat 'Sweetwater' Clifton makes history in his journey to become the first African American to sign an NBA contract, forever changing the game of basketball.In the fall of 1950, Nat 'Sweetwater' Clifton makes history in his journey to become the first African American to sign an NBA contract, forever changing the game of basketball.