there were two technological innovations that profoundly changed daily life in the 19th century: steam power and electricity. The railroad helped expand the U.S.. The telegraph, the telephone, and the typewriter brought people together that were far away.
The Monroe Doctrine was a United States policy of opposing European colonialism in the Americas beginning in 1823. ... By the end of the 19th century, Monroe's declaration was seen as a defining moment in the foreign policy of the United States and one of its longest-standing tenets.
After the defeat in WWII, Germany's capital, Berlin was divided into four zones which were separately governed by France,Britain,US and the USSR. In 1946,the three nations merge the zone of France, Britain and US to be governed by one government, USSR strongly protested against it as the merged zones account for 75% of Germany's original population. In reaction,USSR cut off all land routes linking Berlin and the Western zone,claiming that it was to protect USSR's economy. The event was known as Berlin Blockade.
Answer:
The reason why we need a system of currency exchange in order to conduct international trade is because different countries use different types of currency. They do so because national sovereignty allows each nation to establish its own currency. However, we need a system to pay for goods that are purchased from other countries. This is why the currency exchange system allows us to conduct international trade
Explanation:
