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When did Thomas Edison invent the light bulb?

Scientists had been struggling to come up with a safe and inexpensive substitute for gaslight for 50 years before Thomas Edison invented the incandescent bulb. The original bulb used a platinum filament, but in 1880, Edison had a breakthrough and used carbon bamboo, which proved to be a viable alternative to the filament and resulted in a more affordable and efficient light bulb.

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What was Bantu migration?

The first explanation asserts that the Bantu originated in the West African regions of the Cameroon Highlands and Baunchi plateau, located in Nigeria. This would mean that the Niger basin was the cradle land of the original Bantu groups. However, another theory posits that the Bantu actually came from the Katanga region, which is located in southeastern Congo.It's then believed that the Bantu spread eastward and southward, reaching the the lower Congo region. Bantu migration happened quickly, and this could have been from the commonality in language between the various groups.The Bantu mi..

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Who were the Big Three leaders who allied strategy in WWII?

The Big Three met only twice: first in Tehran, Iran and once in the Mediterranean in Yalta. While in Tehran, the Three developed plans to invade Normandy France, which would later be known as "D-Day." In the next meeting at Yalta, the Three discussed what should be done about Germany and the territories taken from the Nazis, as well as the demilitarization of the country. In both meetings, each party reaffirmed their belief in ending the war through unconditional surrender.

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Where was the Battle of Cold Harbor?

The Battle of Cold harbor lasted nearly two weeks between May 31 and June 12 in 1864 and was part of General Ulysses S. Grant's overland campaign. The battle resulted in a defensive victory for the Confederate forces led by Robert E. Lee, as the Union soldiers were unable to break through until the last days of the war. During the battle, casualties on both sides totaled approximately 18,000 people.

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How many children does Bill Clinton have?

While living in the White House, Bill and Hillary successfully shielded their daughter from the spotlight, but today she is a well-known public figure. On July 31, 2010, Chelsea married Mark Mezvinsky, an investment banker and son of a former Congress member Marjorie Margolies. They were married 4 years before the coupled announced they were expecting their first child.On September 27, 2014, Bill and Hillary's first grandchild was born. Their granddaughter was named Charlotte Clinton Mezvinsky.

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Why do people object to Indian mascots?

One of the more publicly known Native American mascots is Chief Wahoo, a smiling Indian that serves as the symbolic character for Major League Baseball's Cleveland Indians. However, the most controversial Native American mascot, as of 2015, is the Washington Redskin. To Native Americans, the word "redskin" is just as offensive as the N-word is to African Americans. Even the Merriam-Webster dictionary notes that "redskin" is a term that people should avoid using.\nNative American activists have filed petitions with the Trademark Trial and Appeal Board to cancel the trademark of the Washing..

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What was the system of government in the Southern Colonies?

There were three types of government in Colonial America, namely Royal, Charter and Proprietary. A colony could be referred to as a Royal Colony, a Charter Colony or a Proprietary Colony. A Royal Colony was ruled directly by the King and was subject to his demands. A Charter Colony was organized according to the provisions in its charter. A Proprietary Colony was owned by an individual or an elite group, called proprietors, who appointed the governors in the colony and established the laws. The Southern Colonies were made up of Georgia, Maryland, North Carolina, South Carolina and Virginia. Ma..

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Which countries did Alexander the Great conquer?

Alexander the Great is considered one of the most successful military commanders of all time. By the time of his death at age 32, he had conquered most of the world that was known to the ancient Greeks. He assumed the kingship of Macedon in 336 BC upon the death of his father, Philip II of Macedon, and ruled until his own death under suspicious circumstances in 323 BC. His 13-year rule was defined by constant war and his desire to expand his empire to the "ends of the world and the Great Outer Sea."\n\nAlexander's military advancement can be separated into three stages: the Balkan, Persia..

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What were the most notable events during John Quincy Adams' presidency?

Following his election, Adams named Henry Clay his Secretary of State, which prompted his critics to claim he and Clay had made an agreement prior to Adams' election as president.\nAdams, in his first annual message, urged the country to develop a system of highways and canals. He made good on his promise and the Erie Canal was completed in 1826. This canal linked the Great Lakes with the Hudson River. In 1828, construction began on the Baltimore and Ohio Railroad. Adams also attempted to establish a national system of weights and measurements, as well as a national university, but found ..

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How do you find information about U.S. presidents?

The Biography and History Channel websites offer a digital archive of information about each U.S. president including video footage, details of the president's personal life and career trajectory, information about the White House and fun facts about each president. Each site also explores the most significant choices that each president made in his presidency such as President Obama's health care reform plan that was made law in 2010 and was called the "Affordable Care Act."

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