scientific theory is an explanation of some aspect of the natural world that can, in accordance with the scientific method, be repeatedly tested, using a predefined protocol of observations and experiments.
Around 220 B.C., Qin Shi Huang, the first emperor of a unified China under the Qin Dynasty, ordered that earlier fortifications between states be removed and a number of existing walls along the northern border be joined into a single system that would extend for more than 10,000 li (a li is about one-third of a mile) .
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During the Paleolithic Era women had generally served different roles to men, but were considered equal members of society. The transition to the Neolithic Era, however, reduced the status of women.
Mostly there ignorance to research who they are voting for.
Slavery was still an issue, so Congress had to pass the Missouri Compromise. There were equal amounts of slave and free states before Missouri requested statehood, so there was much debate on whether Missouri should represent a free or a slave state in Congress, meaning whichever group it represented would get more representation in Congress. So, Maine was admitted as a free state at the same time Missouri was admitted as a slave state, creating the Missouri Compromise.
