What city lay in the intersection of the main trans-saharan trade routes?

What crime was king louis xvi accused of, what happened to him as a result?

Why is the end of the cold war tied to the american domestic economy during this time?

What is the main difference between primary and secondary sources? a. primary sources are historical documents, and secondary sources are modern-day documents. b. primary sources are derived from museums and archives, and secondary sources are created by history students and academics. c. primary sources are found in ancient places with a rich history, and secondary sources are found in historical journals and blogs. d. primary sources are created during a particular historical era, and secondary sources are created by studying primary sources.