Answer:
A lot of people from other countries immigrated to USA.
Explanation:
Your answer would be The Mongols helped make the silk roads safer
Answer:
multiculturalism
Explanation:
One of the outgrowths of the civil rights movement of the 1960s was an emphasis on multiculturalism, the belief that the American society should maintain and protect its diversity by laws.
The alliance system caused the World War I to escalate from a regional conflict into a global war. Two major alliances existed in Europe prior to World War I. The Triple Alliance included Germany, Austria-Hungary, and Italy, while the Triple Entente included the Soviet Union, Britain, and France.