The empire was founded by Sundiata Keita and became renowned for the wealth of its rulers, especially Mansa Musa I hope this is helps
Four traditions related with African Americans are combined due to jazz. It means that jazz is the main cause of combination of different traditions of African Americans. These traditions were related with the music industry. As a result different types of music related things were given to the music industry.
Andrew Carnegie & John D. Rockefeller
They wanted to stay nurtral to make more money.