Answer:
The 1960's.
Explanation:
Countries in Africa were trying to get independence from France, United Kingdom, etc.
It was the refinement of the Bessemer process, first used in the United States in the 1860s, that allowed for the major advance in skyscraper construction. As steel is stronger and lighter in weight than iron, the use of a steel frame made possible the construction of truly tall buildings.
The Behavior observed by 14th century Arab traveler is D) Lack or Veiling
In the War of 1812, caused by British restrictions on U.S. trade and America’s desire to expand its territory, the United States took on the greatest naval power in the world, Great Britain.
