The answer is spiritual songs.
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Answer:
If a child of a Russian noble didn't learn mathematics, that child was not allowed to marry. The Great Sovereign at that time, Peter I, decreed in 1699 that the New Year's celebration switch to January 1 from September 1. He also decreed that children between 10 and 15 had to learn mathematics in order to get married. This didn't apply to children of freeholders and government clerks. After children mastered math, they were given marriage certificates written in their own handwriting. If they didn't master the subject, they weren't allowed to be given these certificates, and thus, couldn't marry.
The Zodiac originated the name himself in a series of taunting letters and cards
Out of the choices given, the one that did NOT occur after the fall of Constantinople on May 29, 1453 was the Ottomans refused to permit anyone in the region that was not a Muslim. The correct answer is C.