The political issues that caused the most division in Washington, DC, as the United States moved westward in the 19th century, was whether each new state admitted to the Union would be "slave" or "free". The issue eventually resulted in the Civil War.
Chinese inventions from this period, such as printing, gunpowder, and the compass, changed history. 14. Toilet Paper Although developed around 600 CE, it was only available at first to nobility and the elites. During the Tang Dynasty it became widespread.
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