Analyze and explain how the northwest ordinance and the louisiana purchase

The Northwest Ordinance of 1787, the most important of the three acts, laid the basis for the government of the Northwest Territory and for the admission of its constituent parts as states into the union. An the Louisiana Purchase of 1803 doubled the size of the United States, gave the country complete control of the port of New Orleans, and provided territory for westward expansion.

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explanation:

a. the astrolabe could determine the correct latitudinal location of the ship