To combat the threat of tropical diseases such as malaria and yellow fever, the United States decided to use new measures to eradicate the disease before the construction of the Panama Canal. Under the leadership of Colonel William Crawford Gorgas, many changes were made. When it was discovered that mosquitoes were the source of the disease, Gorgas who was appointed as the head of hospital and sanitation, he made sure that containers with stagnant water were removed because mosquitoes lay their eggs there. He also built domestic water systems to eliminate the need to collect rain water. Prophylactic Quinine was supplied to the people in the area and fumigation and oiling of streams were launched. Those who were sick were quarantined and workers would sleep in screened structures so that mosquitoes would not be able to bite them. These programs resulted in the successful elimination of tropical diseases in the area and the health of workers improved.
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wheres the story about that ?
In 1856 Franco-Russian-British peace was signed at the Congress of Paris. Cavour succeeded in having one of the sessions expressly devoted to discussing the "Italian problem": He was able to publicly defend the idea that the repression of the reactionary governments and the The policies of the Austro-Hungarian Empire were the real culprits of the revolutionary anxieties that were forming throughout the peninsula and, above all, that these revolts in Italy could degenerate into a revolutionary threat to all the governments of Europe, thereby increasing the Franco-British concern in the "Italian problem".
Answer: A child finds a shiny rock in a creek, thousands of years ago, and the human race is introduced to gold for the first time. Gold was first discovered as shining, yellow nuggets. “Gold is where you find it,” so the saying goes, and gold was first discovered in its natural state, in streams all over the world.
Explanation: A child finds a shiny rock in a creek, thousands of years ago, and the human race is introduced to gold for the first time. Gold was first discovered as shining, yellow nuggets. “Gold is where you find it,” so the saying goes, and gold was first discovered in its natural state, in streams all over the world.
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Because Shay's forces were defeated by state troops in 1787, many rebels were in prison; fourteen leaders were sentenced to death. Although, the rebellion ended up showing the weakness of the Confederation of government, and allowed many Americans to admit that the Articles of Confederation had failed to protect the ideals of liberty stated in the Declaration of Independence.