How did mansa musa organize and protect his empire?

Who's idea was it for businessmen to use their wealth for the greater good of society? (gospel of wealth ~ap u.s. history

How was apartheid practiced in south africa

President of the united states has scheduled a cabinet meeting today to discuss energy policy with specific focus on pollution and global warming. given what you know of the executive branch, which group of attendees would the president most likely expect to provide up-to-date information and expert insight during this meeting?