History

A:

The abacus was invented by Chinese mathematicians approximately 5,000 years ago. The abacus is occasionally hailed as the world's first computer, but the abacus is more accurately described as a counting device. After its invention, people all around the world began using the abacus to help with their calculations.

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    • What was the first bank in the world?

      Q: What was the first bank in the world?

      A: The world's first bank on record was the Taula de la Ciutat, which opened in Barcelona in 1401. Banking practices can be traced back to the Roman Empire.
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    • What were ancient China's natural resources?

      Q: What were ancient China's natural resources?

      A: The prodigious land area of ancient China harbored resources like coal, drinking water, numerous minerals and plant and animal life. China is the biggest producer of salt on Earth, with 17 million tons annually. There are 760 billion tons of coal located in China's Shanxi region, and the 3 trillion cubic meters of rainfall and river water rank 6th in the world.
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    • What did the Mayans eat?

      Q: What did the Mayans eat?

      A: The four staple foods in Mayan cuisine are squash, beans, maize and chili peppers, and they were often combined with meat or seafood. Squash, beans and maize are often referred to as the "three sisters" because they provide all the necessary nutrients when eaten together.
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    • Who was the first person to invent music?

      Q: Who was the first person to invent music?

      A: Music predates recorded history, so it is impossible to say where and when it was first performed. However, there are archaeological records that indicate virtually all prehistoric societies developed musical instruments and had some capacity to play music.
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    • What was ancient Hebrew civilization like?

      Q: What was ancient Hebrew civilization like?

      A: Little is known about the oldest eras of ancient Hebrew civilization because the culture was nomadic. The most distinct and long-lasting elements of ancient Hebrew civilization lay not in its architectural, artistic or diplomatic contributions but in the focus of the people on a monotheistic God who was radically different from the gods worshipped by most ancient peoples.
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    • What weapons did the Babylonians use?

      Q: What weapons did the Babylonians use?

      A: The ancient Babylonians used sharpened weapons such as sickle swords, socketed axes, spears, and the Egyptian-derived bladed mace, as well as clubs and staffs, and projectiles flung from war slings. The Babylonians were a Bronze Age people, so the bladed weapons they used were made of a softer metal than later civilization's iron and steel. This made them less effective in battle than iron and iron-alloy based weapons, as iron is harder and harder blades can take a sharper point.
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    • Who invented the first robot?

      Q: Who invented the first robot?

      A: The first robot was created by the Greek mathematician Archytas of Tarentum. It was a flying wooden dove that traveled up to 200 meters through the air by flapping its wings.
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    • Who invented the newspaper?

      Q: Who invented the newspaper?

      A: The first known newspaper was the Roman Acta Diruna, published on orders from Julius Caesar in 59 B.C. It is unknown who physically made the papers. Caesar wanted to inform the public about important social and political happenings, as well as upcoming events.
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    • Who invented the candle?

      Q: Who invented the candle?

      A: The first recorded use of candles is in fat-based items invented by the Egyptians circa 3000 B.C. These candles, called rushlights, were made from reeds coated in animal fat.
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    • How do a wheel and axle work?

      Q: How do a wheel and axle work?

      A: The combination of a wheel and axle is a simple machine that consists of a large wheel attached to a smaller wheel called an axle that turns on the same axis. When the large wheel is turned, the axle also turns.
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    • Who invented the Hubble Space Telescope?

      Q: Who invented the Hubble Space Telescope?

      A: The Hubble Space Telescope was invented by Lyman Spitzer, who first proposed the concept in 1946. Spitzer, a native of Toledo, Ohio, continued analyzing photos from the Hubble Space Telescope until his passing in 1997.
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    • Who invented the cell phone?

      Q: Who invented the cell phone?

      A: Martin Cooper invented the cell phone in 1973 while he was general manager of Motorola's communications systems division. He placed the first wireless call to industry rival AT&T Bell Labs while standing on a street in New York City on April 3, 1973. He also called a radio station in New York City to alert the public of his technological achievement.
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    • What were the negative effects of the Crusades?

      Q: What were the negative effects of the Crusades?

      A: Negative effects of the Crusades included the repeated defeats of the Christian armies, the slaughter of innocents and the looting of Constantinople. The destruction of Constantinople severed any hope of mending the East-West schism in Christianity, and this event left the Byzantine Empire vulnerable to the Ottoman Empire.
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    • How tall was Genghis Khan?

      Q: How tall was Genghis Khan?

      A: There is no definitive account of Ghengis Khan's height. Descriptions simply describe him as tall. Tall is likely relevant, however. The average height of man during the time in which Ghengis Khan lived was just under 5 foot 7 inches, so anyone taller than this average could be considered tall.
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    • How did people try to avoid the Black Death?

      Q: How did people try to avoid the Black Death?

      A: A number of superstitious and pseudo-scientific beliefs arose around the causes of the spread of the bubonic plague, known to historians as the Black Death, and people ended up barricading themselves from society, flagellating one another with whips, and enacting several other stratagems to try to keep from contracting the disease.
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    • What is a female emperor called?

      Q: What is a female emperor called?

      A: A female emperor is properly termed an empress or an empress regnant. Emperors and empresses reign over empires and are generally conceded to outrank kings. Reigning empresses rarely conquer their own territories but instead inherit from a husband or father.
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    • What are facts about Mansa Musa?

      Q: What are facts about Mansa Musa?

      A: Mansa Musa assumed the position of ruler of Mali during the 14th century, and later embarked on a journey to Mecca, becoming the first African ruler to do so. Mansa Musa was born in 1280 A.D., and died in 1337. His life achievements included promoting the Muslim religion, and supporting unprecedented growth of the arts and education.
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    • Why did Henry VIII create the Church of England?

      Q: Why did Henry VIII create the Church of England?

      A: King Henry VIII created the Church of England in 1536 as a result of a dispute with the pope, who would not permit Henry to get a divorce from his wife and marry his long-time mistress. Henry's marital history started under a cloud of suspicion, as his marriage to Catherine of Aragon meant he was forming a union with his brother's widow. Whether his series of divorces was actually the result of his failure to produce a male heir or some other form of instability is a matter of some dispute, but the reason for forming the Anglican Church was to give Henry the right to act as the head of his own church and marry as he pleased.
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