The author never mentions Da Vinci's failures or bad quality's, which makes it biased because not all the info is there to read.
The major historical circumstances revolving around the ratification of the Constitution was that many people believed it would give the federal government too much power.
Answer:
In June 1950 communist North Korea invaded South Korea. The United States came to the aid of South Korea at the head of a United Nations force composed of more than a dozen countries. Communist China joined North Korea in the war in November 1950, unleashing a massive Chinese ground attack against American forces.