The Pyramid of Djoser is the first Egyptian pyramid and despite claims of older pyramids being found in recent years, it is the oldest confirmed pyramid in the world.
Answer:
The cotton gin increased productivity in the US and enhanced the economy.
Explanation:
The nations that fielded jet fighters during world war ii were: Germany, United Kingdom, United States, Japan, and the Soviet Union.
World war ii became the first war when jet aircraft was used in combat. Back then, the nations that could use this technology are only the leading industrialized nations.
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.