Oda Nobunaga, Toyotomi Hideyoshi, and
Tokugawa Ieyasu
The three branches are legislative, Executive, and Judicial
It was about China showing USA and the west there power
A. The Jungle
"The Jungle", was written by Upton Sinclair, and exposed many of the harsh conditions and how the meat was packaged led to reform of the meat industry internally, and the creation of federal food safety laws.
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A. Muslim mathematicians introduced algebra into the world
is correct - that is the reason why the number system we use today is the Arabic Numericals.
B. Ibn Sina collected medical knowledge into a book that was used for centuries in Europe
is correct - that books is called The Canon of Medicine.