Historians and archaeologists have three methods to reconstruct history: through primary sources, secondary sources and the oral history. Primary sources include the artifacts, videos and letters; while secondary sources are through books and reports. Oral history, on the other hand, are not written sources. They are passed on to generations through stories, songs, and may manifest in their customs and traditions.
Answer:Because of his nature of giving, Musa's massive spending and generous donations created a massive ten year gold recession. In the cities of Cairo, Medina, and Mecca, the sudden influx of gold devalued the metal significantly. Prices of goods and wares became greatly inflated.
Explanation: Source: https://en.wikipedia.org/wiki/Mansa_Musa#:~:text=Because%20of%20his%20nature%20of,and%20wares%20became%20greatly%20inflated.
The link is where I got the answer!
Explanation:
the french and idian war began over the specific issue of wherever the upper Ohio river valley was a part of the british empire, and therefore open. for trade and settlement by virginians and pennsylvanians or part of the frech empire.
B.Cold war because it was the beginning of the nuclear research
A) Lend-Lease → Pearl Harbor → D-Day → the atomic bomb