The true statement about the Harlem Renaissance is: The Great Migration brought many African Americans to Harlem.
The Great Migration was a significant movement of African Americans from the rural South to urban centers in the North, including Harlem, which became a cultural hub during the Harlem Renaissance. The era is celebrated for its flourishing arts, literature, and music, greatly influencing American culture. The other statements are not accurate; the Harlem Renaissance did have lasting effects, many people outside Harlem did listen to the new forms of music, and it was more of a cultural and artistic movement rather than a scientific rebirth.