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The 10th century spans the years 900 to 999 AD and was a period of significant political, cultural, and religious change across Europe, Asia, and other regions. It matters historically because it marked important developments such as the fragmentation of large empires, the rise of feudalism in Europe, and major shifts in world power structures that shaped the medieval period.
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Eastern Hemisphere at the beginning of the 10th century
The 10th century was the period from 901 (represented by the Roman numerals CMI) through 1000 (M) in accordance with the Julian calendar, and the last century of the 1st millennium.