He proposed the Fugitive Slave Act in 1850, which was to send back runaway slaves from which who escaped from the southern states to the north. As this was a add onto the older laws this law punished officials who did not capture runaway slaves and bring them back to the southern states. In 1855 was found unconstitutional and was Nullified
Do you have the options? If not I'd say European Imperialism was started by Portugal.
The correct answer is Malaria
Malaria was a huge problem since it couldn't be treated and people mostly died from it. It prevented numerous explorers from venturing into places like Africa where Malaria was running rampant due to the huge amount of mosquitoes. When it was discovered, it enabled numerous people to live at ease because they could not live with the disease or prevent getting it.
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According to bbc, Article 231, the War Guilt Clause blamed Germany and her allies for starting the war – this led to feelings of humiliation and anger. Germany had to pay reparations of £6.6 billion - this ensured that the economy would not recover.
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