Barack Obama is the President of the United States where the capital city is Washington D.C. African American is one of the ethnic groups and the book 1634:The Ram Rebellion was written.
Ahmet Ertegun is from the United States, where African Americans are one of the ethnic groups. His musical genre was rhythm and blues, which disco is a derivative of, and he died in New York City.
United States | leader title | President of the United States United States | leader | Barack Obama United States | capital | Washington, D.C. 1634: The Ram Rebellion | country | United States United States | ethnic group | African Americans Ahmet Ertegun | origin | United States Ahmet Ertegun | genre | Rhythm and blues Ahmet Ertegun | death place | New York City Rhythm and blues | derivative | Disco United States | ethnic group | African Americans