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Answer:
Fort Sam Houston is a U.S. Army post in San Antonio, Texas. Known colloquially as "Fort Sam", it is named for the U.S. Senator from Texas, U.S. Representative from Tennessee, Tennessee and Texas Governor, and first President of the Republic of Texas, Sam Houston.
<span>At the height of the Mongol Empire, it's Khanates reached from the Sea of Japan to the North to the South China Sea on one side, and from The Black Sea in the North, to the Arabian Sea on the other side. In between these bodies of water, the empire covered some 9,300,000 sq mi.</span>
Those are good examples of primary sources
