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Which river system is not a location of the first civilizations?

While many of the world's first civilizations arose around rivers, most river systems did not host these civilizations. The river systems that hosted the first civilizations were the Euphrates, the Tigris, the Nile, the Indus and the Yellow or Hueng Hi. While later civilizations may have arisen independently around other rivers, scholars generally agree that these five rivers were the earliest centers of agriculture and city-building.

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Who invented the first loudspeaker?

Although another inventor named Johann Phillip Reis also had a loudspeaker in his own telephone invention in 1861, the speaker was only able to reproduce tones and unintelligible speech. Seimens patented the principle of the dynamic or moving-coil transducer with a circular wire in a magnetic field, which inspired Bell to invent his own telephone loudspeaker.Seimens could have easily been recognized as the inventor of the loudspeaker if not for one mistake; he patented his device as a magneto-electric apparatus and he did not use it to transmit or recreate audio. A year after the patent for th..

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Why is Korea called the Hermit Kingdom?

In 1592 A.D., Joseon Korea was invaded by Japan under Oda Nobunaga. Western colonial powers attempting to force trade during the 1600s forced Korea to cut all ties with the outside world except for China. In 1895, Japanese agents assassinated Empress Myeongseong and occupied Korea for 40 years. A civil war began after freedom from Japan. North Korea would have very little initial contact with outside nations other than communist states. South Korea was heavily involved with Western countries, especially the United States. Although it is called the Hermit Kingdom in the U.S., as of 2014, North ..

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Was Marie Antoinette killed because of her fashion sense?

Marie Antoinette was still a teenager when she became Queen of France in 1774. She was enamored with France's high fashion world and her bold choices made her an icon in French fashion. Images of her outfits could be found in newspapers or collections of fashion plates. Her personal spending on frivolous matters ran counter to the majority of the French people, who were on the brink of starvation and outraged.Her husband Louis XVI's inability to pull France out of debt further drove hostility toward Louis and Marie. They were both tried and convicted of treason of the French governme..

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Where did World War I take place?

World War I initially began on the eastern front in 1914, where Russia invaded East Prussia and Poland. In that same year, battles and mobilizations occurred in the following instances:Russian troops mobilized across the Austria-Hungary border while Britain joined its allies in declaring war against Austria-Hungary and Germany.Russia invaded the German Empire and Austria-Hungary.Germany invaded France and Austria-Hungary invaded Serbia.The U.K., with some assistance from Canada, began fighting Germany at sea and in African areas, including Togo.The Ottoman Empire of Turkey invaded Russia.The B..

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What did the Pilgrims do for fun?

Pilgrim children did not play as much as today's children. They spent most of their time working hard and attending to other family tasks. Playing games was perceived to be a way of resting from work. Therefore, most parents encouraged their children to take part in games that would improve on their skills. They didn't want children to take part in games that involved luck as that was much like gambling.

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For what did Malcolm X fight?

Malcolm Little became involved with the Nation of Islam while in prison. This Muslim organization believed blacks were superior to whites and was run by Elijah Muhammad. While still in his twenties, Malcolm dropped his last name and replaced it with "X." He also became a key spokesperson for the Nation of Islam, advocating self defense against the white race. He eventually left the Nation of Islam and dramatically softened his views on whites. The Nation of Islam felt that he betrayed them, and three of the organization's members assassinated Malcolm X in 1965.

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How effective was napalm and Agent Orange against guerrilla tactics in the Vietnam War?

Napalm is a mixture of plastic polystyrene, hydrocarbon benzene and gasoline, which are all highly flammable materials. The mixture is thick, jelly-like and immediately burns anything within 10 minutes. Napalm bombings were incredibly devastating and almost always killed everyone in its path. The temperatures of napalm ranged between 1,500 to 2,000 degrees Fahrenheit.\nAgent Orange was an intense herbicide that the American troops used to destroy the clean food and water of Vietcong and their sympathizers. The chemical had devastating lingering effects on plants, animals and people in the area..

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What are some interesting facts about Samuel de Champlain?

Samuel de Champlain wrote a lot about his travels and his adult life; however, not much is known about his early years. His baptismal certificate, discovered in 2012, indicated he was born in Brouage, France. Many of the men in Champlain's family were mariners. In fact, his first voyages to the West Indies and Spain were with his uncle.

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Which sites list the Presidents of the United States in the order they served?

PresidentsUSA.net has a simple list of all presidents and vice presidents. Each name is a link to a page of quick facts that link to other pages with more information. The main list can be sorted by political party, and within each party, the presidents are listed in chronological order. On each individual's page, there is a drop-down box where users can pick a different president.\nThe White House list is broken up by century, making it easier to find a specific time period of presidents. Each name links to a page with detailed information about the president, such as a biography and pol..

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