Answer:
The Great Depression
Explanation:
The United States was still suffering the Great Depression before it intervened. In 1939, Roosevelt told Americans that he wouldn't get involved in World War II, however quickly declared war after the Bombing of Pearl Harbor.
The US would need workers as a result of the war effort, and employed thousands of people at a time. People had jobs for the first time in ages, and many economists believed that the Great Depression was truly over.
Answer: The Treaty of Paris, signed on 30 March 1856, ended the war. It forbade Russia from basing warships in the Black Sea.
Explanation:
Russia was forced to return the city of Kars and all other Ottoman territory which it had taken into its possession. The principalities of Wallachia and Moldovia were thus returned as Ottoman territory, later granted independence and eventually turned into modern-day Romania.
It was mainly around the years of 1630 I believe.