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Acheulean Tools

Acheulean tools are the stone hand axes, cleavers, and other core tools created by prehistoric hominins across Africa, Asia, and Europe during the Lower Paleolithic Period. These tools date from around 1.5 million to 150,000 years ago, and some believe their development represents the genesis of human art, economy, and social organization. Curiously, some sites contain hundreds of hand-axes that are impractically large and apparently unused. What are some theories about their function?Acheulean tools are the stone hand axes, cleavers, and other core tools created by prehistoric hominins across Africa, Asia, and Europe during the Lower Paleolithic Period.

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The Ku Klux Klan Is Formed (1865)

The Ku Klux Klan is the name of two distinct secret societies that played a part in American history. The first Klan was an organization that thrived in the South during the Reconstruction period following the Civil War. The second was a nationwide organization that flourished after World War I. Subsequent groups calling themselves the Ku Klux Klan sprang up in much of the South after World War II and in response to civil-rights activity during the 1960s. How did the Ku Klux Klan gets its name?

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Boston Red Sox Sell Babe Ruth to the New York Yankees (1919)

Between 1914 and 1919, Ruth compiled an outstanding pitching record, but because pitchers do not play in every game, he was shifted to the outfield so that his powerful hitting could be used consistently. The following season, he was sold to the New York Yankees, and his batting feats and public personality helped salvage baseball's popularity, which had been damaged by the Black Sox scandal. According to legend, Ruth was sold by the owner of the Red Sox in order to finance what?

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Rutan Voyager Completes First Nonstop Flight around the World without Refueling (1986)

Piloted by Dick Rutan and Jeana Yeager, who first conceived of the craft and sketched it on the back of a napkin in 1981, the Rutan Voyager was the first aircraft to fly around the world without stopping or refueling. It took off from Edwards Air Force Base in the Mojave Desert on December 14, 1986, and landed there nine days later. The aircraft more than doubled the previous record of un-refueled flight set by a US Air Force B-52 in 1962. How much does the Rutan Voyager weigh?

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The Song Dynasty

The first government in history to issue paper money, the Song dynasty was the ruling dynasty in China between 960 and 1279. A culturally rich period for the arts, philosophy, and social life, the dynasty also bolstered naval strength and developed revolutionary new military technology—augmented by the use of gunpowder—to repel invaders. Nevertheless, the Song dynasty was conquered in 1279 by the Mongol ruler Kublai Khan. What nautical tool was invented during the era?

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