Dorothea Dix was a social reformer dedicated to changing conditions for people who could not help themselves--the mentally ill and the imprisoned. Not only a crusader, she was also a teacher, author, lobbyist, and superintendent of nurses during the Civil War.
The Hyksos were a Semitic people who gained a foothold in Egypt c. 1782 BCE at the city of Avaris in Lower Egypt, thus initiating the era known in Egyptian history as the Second Intermediate Period
Marshall plan: provided economic aid to Europe. It was implemented by the US and assisted Western Europe countries which had adopted a market economy system after WWII.
United Nations: approved the partition of Palestine in 1947. Such resolution advised that two independent Jewish and Arab states should be created.
Warsaw doctrine: strengthened soviet control over Eastern Europe. It was a treaty signed among the Soviet Union and seven of its satellite states in order to colaborate in common defense issues.
Truman doctrine: outlined the ways to contain communism. It contained the guidelines of US foreign policy that aimed to limit the geopolitical expansion of the Soviet Union and its allied states.