The Cold War event that happened last was the Berlin Wall construction.
1949 - Germany is divided
-After World War II, Germany was occupied militarily by the Allied, dividing the territory into four autonomous zones of occupation, under the unified command of an Allied Control Council. Although the initial plan was to reunify the country, the growing tension between the United States and the Soviet Union in the framework of the Cold War caused the western occupation zones to unite in 1949 into a new independent state called the Federal Republic of Germany, to which the USSR responded constituting the same year the German Democratic Republic in its respective zone of occupation.
1950 - The Korean War starts
-The Korean War took place between 1950 and 1953. It faced the Republic of Korea, supported by the armed forces of several countries commanded by the United States; and the Democratic People's Republic of Korea, supported by the People's Republic of China and the Soviet Union.
1955 - The Warsaw Pact is formes
-The Warsaw Pact was a military cooperation agreement signed on May 14, 1955 by the countries of the Eastern Bloc.
1961 - The Berlin Wall is built
-The Berlin Wall was a security wall that formed part of the inter-German border from August 13, 1961 to November 9, 1989.
In order to ensure that they had the water they needed for their farms, the Inca built large canal systems to irrigate, or bring water to, their fields. The canals also brought water to the cities. Many streets had supplies of fresh water running through a canal.
Mostly they affected it through their imperialism. They would colonize and take over countries for resources, and with them they would bring their technologies and things that they needed. After they left these things stayed, things like telephone and telegram lines and similar things. Culturally, they would mostly disregard the local culture and impose their own which would often be accepted and kept by the locals, but often there was also warfare.