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Shortly after the unification of the region, the Western Jin dynasty collapsed. First the rebellions by eight Jin princes for the throne and later rebellions and invasion from Xiongnu and other nomadic peoples that destroyed the rule of the Jin dynasty in the north. In 317, remnants of the Jin court, as well as nobles and wealthy families, fled from the north to the south and reestablished the Jin court in Nanjing, which was then called Jiankang (建康), replacing Luoyang. It's the first time that the capital of the nation moved to southern part.

Where did the Jin court re-establish itself, after fleeing?
Answer: Nanjing
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Eritrea is a multilingual country. The nation has no official language, as the Constitution establishes the "equality of all Eritrean languages". However, Tigrinya serves as the de facto language of national identity. With 2,540,000 total speakers of a population of 5,254,000 in 2006, Tigrinya is the most widely spoken language, particularly in the southern and central parts of Eritrea. Modern Standard Arabic and English serve as de facto working languages, with the latter used in university education and many technical fields. Italian, the former colonial language, is widely used in commerce and is taught as a second language in schools, with a few elderly monolinguals.

What languages serve as de facto working languages in Eritrea?
Answer: Modern Standard Arabic and English
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Like other American research universities, Northwestern was transformed by World War II. Franklyn B. Snyder led the university from 1939 to 1949, when nearly 50,000 military officers and personnel were trained on the Evanston and Chicago campuses. After the war, surging enrollments under the G.I. Bill drove drastic expansion of both campuses. In 1948 prominent anthropologist Melville J. Herskovits founded the Program of African Studies at Northwestern, the first center of its kind at an American academic institution. J. Roscoe Miller's tenure as president from 1949 to 1970 was responsible for the expansion of the Evanston campus, with the construction of the lakefill on Lake Michigan, growth of the faculty and new academic programs, as well as polarizing Vietnam-era student protests. In 1978, the first and second Unabomber attacks occurred at Northwestern University. Relations between Evanston and Northwestern were strained throughout much of the post-war era because of episodes of disruptive student activism, disputes over municipal zoning, building codes, and law enforcement, as well as restrictions on the sale of alcohol near campus until 1972. Northwestern's exemption from state and municipal property tax obligations under its original charter has historically been a source of town and gown tension.

In 1978, what famous attacks occured at Northwestern?
Answer:
first and second Unabomber