The major social sciences are Anthropology, Archaeology, Economics, Geography, History, Law, Linguistics, Politics, Psychology and Sociology.
It said that as of January 1, 1863, all slaves in the rebellious states "shall be, thenceforward, and forever free." This was issued by Lincoln to preserve the nation into a battle for human freedom.
At the conclusion of the Spanish American War, the United States gained Cuba as its Protectorate, which eventually led to the Cuban War of Independence and the subsequent rise of the Philippine–American War
