Textbooks, biographies, reports, and reprints.
As far as the impacts of the pilgrimage go, they are numerous. First, Mansa Musa established his presence for other rulers in Europe and the Middle East. Secondly, the amount of gold they carried and the king’s generosity in its regard expressed his wealthy status. The journey to Mecca had a number of effects on the history of Western Sudan. Most significantly, the pilgrimage journey exposed Mali to Europe and the Middle East. The king had carried 30,000 pounds of gold, which signified the immense wealth in his empire. This created an impression on his acquaintances.
Come up with something special that your light bulb can do (make something up) then set up an advertisement filming how "helpful" it can be in every day life. You can use people to talk about how great it is within the ad (kind of like an interview.)
The car culture had a big influence on the migration in 1950's. After the war, the country became one of the world's largest manufacturer of automobiles. Every American family wanted a car and with the new highway system, it made things easier for everyone to migrate from North to South and West to East.
