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Recent molecular phylogenetic studies suggest that most placental orders diverged about 100 to 85 million years ago and that modern families appeared in the period from the late Eocene through the Miocene. But paleontologists object that no placental fossils have been found from before the end of the Cretaceous. The earliest undisputed fossils of placentals come from the early Paleocene, after the extinction of the dinosaurs. In particular, scientists have recently identified an early Paleocene animal named Protungulatum donnae as one of the first placental mammals. The earliest known ancestor of primates is Archicebus achilles from around 55 million years ago. This tiny primate weighed 2030 grams (0.71.1 ounce) and could fit within a human palm.
When is the earliest know primate thought to had exist?
A: 55 million years ago

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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.
Between 1939 and 1949, how many military officers and personnel weren't trained on the Evanston and Chicago campuses?
A: unanswerable

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In the middle of the 17th century, the peasant rebel leader Zhang Xianzhong (16061646) from Yan'an, Shanxi Province, nicknamed Yellow Tiger, led his peasant troop from north China to the south, and conquered Sichuan. Upon capturing it, he declared himself emperor of the Daxi Dynasty (). In response to the resistance from local elites, he massacred a large native population. As a result of the massacre as well as years of turmoil during the Ming-Qing transition, the population of Sichuan fell sharply, requiring a massive resettlement of people from the neighboring Huguang Province (modern Hubei and Hunan) and other provinces during the Qing dynasty.
Which region did Huguang conquer in the mid-17th century?
A: unanswerable

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Spielberg's film Munich, about the events following the 1972 Munich Massacre of Israeli athletes at the Olympic Games, was his second film essaying Jewish relations in the world (the first being Schindler's List). The film is based on Vengeance, a book by Canadian journalist George Jonas. It was previously adapted into the 1986 made-for-TV film Sword of Gideon. The film received strong critical praise, but underperformed at the U.S. and world box-office; it remains one of Spielberg's most controversial films to date. Munich received five Academy Awards nominations, including Best Picture, Film Editing, Original Music Score (by John Williams), Best Adapted Screenplay, and Best Director for Spielberg. It was Spielberg's sixth Best Director nomination and fifth Best Picture nomination.
How many Israeli athletes died during the 1972 Munich Massacre?
A:
unanswerable