D. the magnetic compass and gunpowder
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A primary source tells you about a certain event that happened in the past and it's from that event. When studying historical events, historians want their information to be precise and correct. primary sources are firsthand, contemporary accounts of a certain event that was recorded by somebody who witnessed or experienced that event. Primary sources includes the original stuff and it's very important.
Answer:
Whites in the North feared competition for their jobs.
Answer:
Explanation:
An Ordinance for the Government of the Territory of the United States, North-West of the River Ohio, 1787. Considered one of the most important legislative acts of the Confederation Congress, the Northwest Ordinance also protected civil liberties and outlawed slavery in the new territories. ...