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  The garrison's sentries spot the advance of Santa Anna's Cavalry units. After scouts confirm the Mexican Army's presence, Colonel William B. Travis ordered a withdrawal into the Alamo compound.
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  It was produced, literally, overnight, It was urgency, because while it was being prepared, the Alamo in San Antonio was under seige by Santa Anna's army of Mexico.
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  The final assault came before daybreak in the morning as columns of Mexican soldiers emerged from the predawn darkness and headed for the Alamo's walls.
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  During Texas war for independence from Mexico, the Texas militia under Sam Houston launched a surprise attack against the forces of Mexican General Antonio Lopez de Santa Anna at the Battle of San Jacinto, near present-day Houston, Texas.
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  Texas was admitted to the union of the United States of America
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  The Treaty of Guadalupe Hidalgo is signed, ending the Mexican-American War in favor of the United States.