Problem: France used the right moment and occupied Alger in 1830. In 1831 Muhammad Ali of Egypt, who was the most powerful vassal of the Ottoman Empire, claimed independence. Ottoman forces were defeated in a number of battles, and Egyptians were ready to capture Constantinople, which forced the sultan Mahmud II to seek for Russian military aid. 10 000 Russian army corps landed on the Bosphorus shores in 1833 and helped to prevent the capture of Constantinople, thus the possible disappearance of the Ottoman Empire was prevented.
In 1831, who was the strongest vassal of the Ottoman Empire?
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Answer: Muhammad Ali of Egypt

Problem: While Old Czech had a basic alphabet from which a general set of orthographical correspondences was drawn, it did not have a standard orthography. It also contained a number of sound clusters which no longer exist; allowing e (/j/) after soft consonants, which has since shifted to e (//), and allowing complex consonant clusters to be pronounced all at once rather than syllabically. A phonological phenomenon, Havlik's law (which began in Proto-Slavic and took various forms in other Slavic languages), appeared in Old Czech; counting backwards from the end of a clause, every odd-numbered yer was vocalized as a vowel, while the other yers disappeared.
How did Proto-Slavic let complex consonant clusters to be pronounced?
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Answer: unanswerable

Problem: Interracial relationships, common-law marriages, and marriages occurred since the earliest colonial years, especially before slavery hardened as a racial caste associated with people of African descent in the British colonies. Virginia and other English colonies passed laws in the 17th century that gave children the social status of their mother, according to the principle of partus sequitur ventrem, regardless of the father's race or citizenship. This overturned the principle in English common law by which a man gave his status to his children this had enabled communities to demand that fathers support their children, whether legitimate or not. The change increased white men's ability to use slave women sexually, as they had no responsibility for the children. As master as well as father of mixed-race children born into slavery, the men could use these people as servants or laborers or sell them as slaves. In some cases, white fathers provided for their multiracial children, paying or arranging for education or apprenticeships and freeing them, particularly during the two decades following the American Revolution. (The practice of providing for the children was more common in French and Spanish colonies, where a class of free people of color developed who became educated and property owners.) Many other white fathers abandoned the mixed-race children and their mothers to slavery.
English common law generally said what?
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Answer:
a man gave his status to his children