With the collapse of the Soviet Union in 1989 and the end of the Cold War in 1991, the world became more interconnected. This is because the communist bloc countries, which had previously been intentionally isolated from the capitalist West, began to integrate into the global market economy.
Martha Washington is the wife who helped at Valley Forge. She comforted the wives of other soldiers and helped around the campsite.
<span>In order to overcome the geographical obstacles while building the Panama Canal, engineers had to first build a dam which included designing and building locks and then remove large portions of rock and earth. During this time scientists also had to develop numerous vaccines to treat malaria that affected many workers.</span>
