<span>The Northwest Ordinance banned slavery from expanding in territory north of the Ohio river. The Northwest Ordinance is also know as the Ordinance of 1787. This ordinance created the Northwest Territory.</span>
A concept of federalism where local, state, and national governments interact cooperatively and collectively to solve common problems separately, but more or less equally (dual federalism).
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John Wallis was an English clergyman and mathematician who is given partial credit for the development of infinitesimal calculus. Between 1643 and 1689 he served as chief cryptographer for Parliament and, later, the royal court. He is credited with introducing the symbol ∞ to represent the concept of infinity.
One of the Greeks main influences on Roman Culture was the concept of democracy. This was first established in the Classical Period of Greece (its Golden Age).
