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An abolitionist is someone who helped slaves escape captivity and help them reach the North.
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Muhammad ibn Musa al-Khwarizmi is a renowned scholar of Islamic origin. He was born as a Persian and contributed to science immensely. Many of his works were translated and worked upon extensively in Europe. Some of his works and contributions to science generally include the following:
1. He formulated the idea of the algorithm in mathematics. This is a fundamental part of computer science.
2. His work on algebra concept is considered one of the essential parts of modern science.
3. Through his work, he had great impacts on knowledge of astronomy. By which he was able to formulate calendars, real positions of the sun, moon, and planets, construction of sundials, and many more.
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The peoples of Sumer are among the earliest denizens of Mesopotamia. By about 4000 BCE, the Sumerians had organized themselves into several city-states that were spread throughout the southern part of the region. These city-states were independent of one another and were fully self-reliant centers, each surrounding a temple that was dedicated to god or goddess specific to that city-state. Each city-state was governed by a priest king.
Sumerian Cities
Though they shared the Sumerian language as a form of communication, these city-states shared little else, and were in a constant state of warfare, often battling each other for control over water supplies and the fertile land. A typical Sumerian city was well fortified with thick, tall walls, which the king was responsible for maintaining, in hopes of deterring would-be attackers. Within a Sumerian city’s walls were avenues that were used for religious processionals, and high, stepped temples know as ziggurats. Sumerian cities often had several ziggurats, each dedicated to a different god or goddess.
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