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Was John Hanson a slave?

Although he was not African-American, the possibility exists that he may have had an African ancestor. Hanson rose to become the first president of the Continental Congress under the Articles of Confederation in 1781. He served one year in the position and died in 1783. Hanson's title made him head of the country, as at that time, the country had no executive branch.

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Who discovered X-rays?

The medical significance of Roentgen's discovery was acknowledged with the awarding of the Nobel Prize in Physics in 1901.Some earlier inventors paved the way for Roentgen's 1895 breakthrough, including Johan Hittorf, who invented the Crookes tube, and Ivan Pulyi, who developed the vacuum discharge tube.Nikola Tesla also experimented with X-rays using a single-electrode tube, also known as the Bremsstrahlung process.Thomas Edison followed Roentgen's discovery by developing a fluoroscope suitable for medical applications.

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What did European monarchs fear from France?

France was the inspiration for outbreaks of revolution all over Europe, spreading all of the way to South America, between 1815 and 1848. Napoleon spread liberalism through Western and Central Europe, nationalism through Central Europe and to the East. Monarchs across the affected countries maintained a thin veil of peace through this time, only to see it disturbed by these rebellious outbursts periodically.\nThe French Revolution was met with an odd sort of defeated success, as the allied monarchs of the rest of Europe struggled to restore the balance of power in their favor. Through nearly d..

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What was the first major city in the United States to pave its streets?

The first asphalt roads were laid in Yorkshire, England, in 1717 by John Metcalf. Paved roads slowly spread through England and Scotland as building methods improved, and paved roads eventually became popular in continental Europe as well. Edmund J. DeSmedt, a chemist from Belgium, was responsible for many of the early paved roads in the United States.

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How did the British control Nigeria and other British colonies?

The British also kept military personnel in Nigeria in order to keep the Nigerian people firmly under British control. The British would create a false sense of security in Nigeria by allowing a governor to stay in charge of the city, but he had to submit to the British in terms of their rules through what is known as "indirect rule."

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What happened on D-Day on June 6, 1944?

The beachheads were split into five sections: Utah, Omaha, Gold, Juno and Sword. Taking the beachheads cost the Allies considerable casualties, where approximately 10,000 men were lost, with 4,414 confirmed dead. The landing crafts dropped soldiers into heavy machine gun fire, where the German's had set up formidable defenses along the coast. The beaches were laden with barbed wire, mines and other obstacles, making the invasion extremely deadly.Originally, the Pas de Calais was considered a potential landing site for the invasion, being that it was the closest continental point to Great ..

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Who invented the barometer?

Torricelli was born in Faenza, Italy in 1608 and moved to Florence, Italy in 1641 to assist Galileo, the famous astronomer, with vacuum experiments. It was Galileo who suggested Torricelli use mercury in his experiments. Torricelli discovered that mercury rises and falls when atmospheric pressure changes.\nThe aneroid barometer was invented in 1843 by Lucien Vidie. Aneroid barometers do not contain fluid and rely on phosphor bronze or beryllium copper to measure atmospheric pressure.

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From what were the Egyptian pyramids constructed?

The alternative limestone-concrete theory has been met with some skepticism, but its proponents claim that a specialized mixture would have easily hardened into blocks that look like they were carved from solid limestone. The theory's supporters also claim that it provides a solution to the logistical puzzle of how more than 2 million limestone blocks, each weighing at least 2 tons, could have been set into place using the limited mechanical means available to the Ancient Egyptians more than 4,500 years ago.

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How do you find information on the issues on the Tennessee ballot?

Some of the 2014 Tennessee ballot measures included an amendment to allow the state legislature to enact, repeal or amend laws concerning abortion. Another amendment sought to stop the legislature from allowing taxes on earned personal income and payroll. There was also an amendment that involved gambling and sought to allow the legislature to permit lotteries for specific kinds of organizations.

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In what year did women get the vote in Britain?

In 1918, only about three-fifths of the male population could vote in England, because a residency provision required that men reside in England for the 12 months leading up to an election. 1918 marked the end of World War I, which meant that a huge number of men in England had been overseas fighting the war and thus were ineligible to vote. The uproar over an upcoming general election convinced politicians to widen the vote for the first time.

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