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ELIZA is an early natural language processing computer program created from 1964 to 1966 at the MIT Artificial Intelligence Laboratory by Joseph Weizenbaum.
Knights were indeed lower than vassals and held less prestige in medieval society. It's not true though, that knights didn't have enough prestige in medieval society. Vassals swore to the king or the ruler of a region, whereas knights often swore to vassals, so they still had people under them, but they were not at the top.
Answer:
#1 Its primary goals were to map Louisiana territory and to find a route to the Pacific. Carried out during the presidency of Thomas Jefferson, the Louisiana Purchase of 1803 doubled the size of the United States and was by far the largest territorial gain in American history.
It's technically false that the fall of the Berlin Wall symbolized the end of communism since communism still exists, but it did mark the end of communism in Germany.
