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Around 746, Abu Muslim assumed leadership of the Hashimiyya in Khurasan. In 747, he successfully initiated an open revolt against Umayyad rule, which was carried out under the sign of the black flag. He soon established control of Khurasan, expelling its Umayyad governor, Nasr ibn Sayyar, and dispatched an army westwards. Kufa fell to the Hashimiyya in 749, the last Umayyad stronghold in Iraq, Wasit, was placed under siege, and in November of the same year Abu al-Abbas was recognized as the new caliph in the mosque at Kufa.[citation needed] At this point Marwan mobilized his troops from Harran and advanced toward Iraq. In January 750 the two forces met in the Battle of the Zab, and the Umayyads were defeated. Damascus fell to the Abbasids in April, and in August, Marwan was killed in Egypt.
Who became leader of the Khurasan Hashimiyya in approximately 746?
A: Abu Muslim

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On August 23, after the failure of GKChP, in the presence of Gorbachev, Yeltsin signed a decree suspending all activity by the Communist Party of the Russian SFSR in the territory of Russia. On November 6, he went further, banning the Communist Parties of the USSR and the RSFSR from the territory of the RSFSR.
Aside from Yeltsin, what notable figure was present at the signing of the August 23 decree?
A: Gorbachev

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Outside of these genealogies, comics theorists and historians have seen precedents for comics in the Lascaux cave paintings in France (some of which appear to be chronological sequences of images), Egyptian hieroglyphs, Trajan's Column in Rome, the 11th-century Norman Bayeux Tapestry, the 1370 bois Protat woodcut, the 15th-century Ars moriendi and block books, Michelangelo's The Last Judgment in the Sistine Chapel, and William Hogarth's 17th-century sequential engravings, amongst others.[b]
In Rome, what do scientists consider to be a precedent for comics?
A: unanswerable

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In nature, the red color of blood comes from hemoglobin, the iron-containing protein found in the red blood cells of all vertebrates. The red color of the Grand Canyon and other geological features is caused by hematite or red ochre, both forms of iron oxide. It also causes the red color of the planet Mars. The red sky at sunset and sunrise is caused by an optical effect known as Rayleigh scattering, which, when the sun is low or below the horizon, increases the red-wavelength light that reaches the eye. The color of autumn leaves is caused by pigments called anthocyanins, which are produced towards the end of summer, when the green chlorophyll is no longer produced. One to two percent of the human population has red hair; the color is produced by high levels of the reddish pigment pheomelanin (which also accounts for the red color of the lips) and relatively low levels of the dark pigment eumelanin.
What are the pigments in the red sky called?
A:
unanswerable