Eli Whitney invented the Cotton gin
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Muhammad's popularity was seen as threatening by the people in power in Mecca, and Muhammad took his followers on a journey from Mecca to Medina in 622. This journey is called the Hijrah (migration) and the event was seen as so important for Islam that 622 is the year in which the Islamic calendar begins.
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The poorer areas of the cities were characterised by overcrowded, badly built, unsanitary living accommodation, and filthy streets. Cholera, carried by dirty water, killed 16,000 Londoners in 1849 alone, and smallpox, scarlet fever, typhus, scurvy and rickets were rife.
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Shays’ Rebellion demonstrated the high degree of internal conflict lurking beneath the surface of post-Revolutionary life as for why they were mad was because the state government was making farmers pay high taxes. If they could not pay these taxes, they would be thrown in jail, and they could lose their farms. They asked the government to stop.
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