History

A:

The main religion of the Han dynasty was Taoism. The Han dynasty also embraced the philosophical ideas of Confucianism. Buddhism was brought to China during the Han dynasty.

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    • What was the role of women in ancient China?

      Q: What was the role of women in ancient China?

      A: Women in ancient China lived oppressed lives, and their roles centered around caring for their husbands, cleaning, cooking and looking after their kids. The women of ancient China were expected to bear many children, and most of them felt pressure from their husbands to bear a son despite its being beyond their control.
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    • What food did Sumerians eat?

      Q: What food did Sumerians eat?

      A: Barley was the main staple of the Sumerian diet, and was used to make barley cakes and barley paste. Sumerians combined barley with other local vegetables, including beans, lentils, chickpeas, mustard and lettuce. Lamb, goat, pork and fish were favorites with city-dwelling Sumerians, but rural farming communities did not eat meat often and lived on a mostly vegetarian diet.
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    • What do "BC" and "AD" mean in a timeline?

      Q: What do "BC" and "AD" mean in a timeline?

      A: "B.C." stands for "before Christ," while "A.D." stand for "anno domini," meaning "in the year of our Lord," according to How Stuff Works. This way of delineating the calendar was established in the 5th century.
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    • Where did the Earth come from?

      Q: Where did the Earth come from?

      A: Astrophysicists believe the Earth and the rest of the solar system is the result of the Big Bang and its explosions of massive stars. The Big Bang and the stellar explosions, called supernovas, blasted untold amounts of material into space. Eventually, the matter cooled down and began to clump together into a hot, spinning cloud that eventually became a solar nebula.
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    • Did ancient Indus River Valley cities have military protection?

      Q: Did ancient Indus River Valley cities have military protection?

      A: Research suggests that the people of the Indus Valley civilization were peaceful. No weapons or other forms of protection from invaders or other civilizations were used. According to USHistory.org, no evidence of a military has been found in the remains of these ancient cities.
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    • What is the oldest civilization known to man?

      Q: What is the oldest civilization known to man?

      A: Civilizations do not typically have discreet start dates, but tend to emerge gradually over the course of many centuries. This makes it a matter of interpretation whether Egypt, Mesopotamia or India was the first society to develop fixed residences and a complex division of labor.
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    • Who invented fabric softener?

      Q: Who invented fabric softener?

      A: Fabric softeners were invented in the mid 1900s by the textile industry to reduce static and improve the comfort of clothes. Scientist Conrad J. Gaiser later invented the more convenient dryer sheet in the 1960s.
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    • Why did Alfred Nobel invent dynamite?

      Q: Why did Alfred Nobel invent dynamite?

      A: One possible reason for Swedish engineer Alfred Nobel's invention of dynamite was the safety of construction work and blasting rock in the mid-1800s. Nobel helped build bridges in Stockholm. Nitroglycerine was used in the detonation of rock, and it was a relatively unsafe method. According to the Nobel Prize Organization, Alfred Nobel's brother Emil was killed in a nitroglycerine explosion.
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    • How have microscopes changed over time?

      Q: How have microscopes changed over time?

      A: Since the 1st century when Romans experimented with magnifying small objects by looking at them through glass, the microscope has changed considerably with modern versions of the device capable of presenting three-dimensional images of objects at the sub-atomic level. The most notable advances in microscope technology occurred in the 19th century.
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    • When was the pulley invented?

      Q: When was the pulley invented?

      A: The first pulley can be traced back to Mesopotamia in 1500 B.C., when people used pulleys to hoist water. The first compound pulleys were invented by the Archimedes of Syracuse between 287 B.C. and 212 B.C., which were able to move warships filled with men and be operated by one man.
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    • Who invented the bridge?

      Q: Who invented the bridge?

      A: While details surrounding the invention of the first bridge have been lost to time, a bridge in the Palk Straight is believed to be the oldest ever discovered. The first signs of civilization in the region date back 1,750,000 years ago, and the bridge is believed to be as old.
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    • Who invented SCUBA?

      Q: Who invented SCUBA?

      A: SCUBA, which stands for Self Contained Underwater Breathing Apparatus, was invented by Frenchmen Jacques-Yves Cousteau and Emile Gagnan in 1943. Creating underwater breathing devices had long fascinated inventors, and some inventions had varying degrees of success, but Cousteau and Gagnan allowed adventurers to experience the ocean like never before.
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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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    • What was the role of a medieval king?

      Q: What was the role of a medieval king?

      A: The roles of a king during Medieval Europe included land ownership, warfare leadership and lawmaker. A king allowed knights, barons and lords to live on his land, as long as they provided armies of men to fight wars. When kings fought neighboring kingdoms, he led his men into battle. Kings were supreme rulers of their lands, and they meted out justice as they saw fit.
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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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    • 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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    • Where was the Trojan War fought?

      Q: Where was the Trojan War fought?

      A: According to Greek mythology, the Trojan War was fought between the Greeks and the Trojans in the city of Troy in Asia Minor. This is the region of modern-day Turkey. The war took place from 1194 to 1184 B.C., lasting nearly 10 years.
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    • Why is Galileo famous?

      Q: Why is Galileo famous?

      A: Galileo is famous for many things but is probably best known for discovering Jupiter's four moons. The moons around Jupiter are called "Gallilean moons."
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    • Who is the current king of Nigeria?

      Q: Who is the current king of Nigeria?

      A: Nigeria does not have a single king, as it has a federal system of government. All kings were stripped of their power in 1963. As of 2014, the president of Nigeria is Goodluck Jonathan, whom has held office since 2011.
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    • Why did the United States become involved in the Vietnam War?

      Q: Why did the United States become involved in the Vietnam War?

      A: The United States got involved in the Vietnam conflict to keep communism from spreading throughout Southeast Asia. At first the United States only aided France with military aid and advisors, but after the French suffered a major defeat at Dien Bien Phu in the north-western hills, the French pulled out and the United States took over the burden of the war.
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    • Why was Nelson Mandela in prison for 27 years?

      Q: Why was Nelson Mandela in prison for 27 years?

      A: Nelson Mandela was incarcerated for 27 years as a result of his efforts to bring racial harmony and equality to South Africa. He began his efforts as soon as he graduated from law school and founded the first black law firm in the country in 1952. As unrest spread in the 1950s and 1960s, Mandela found himself the target of law enforcement efforts, and after he secretly left South Africa to gain aid and training for the struggle, he was picked up and jailed until Feb. 11, 1990.
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    • Which African countries were never colonized?

      Q: Which African countries were never colonized?

      A: Ethiopia and Liberia were the only two African countries that were not colonized. Liberia was founded by freed slaves and Ethiopia resisted Italian attempts at colonization.
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    • Why did apartheid happen in South Africa?

      Q: Why did apartheid happen in South Africa?

      A: Apartheid was created as a means of cementing economic and social control over South Africa and its resources. The country was colonized by the English and the Dutch in the 17th century. Yet, when gold was discovered in the 1900s, the British seized control, and war broke out. Eventually, peace negotiations were reached and the two shared power over South Africa until the Reunited National Party won the 1948 election.
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    • What war lasted 335 years and had no deaths?

      Q: What war lasted 335 years and had no deaths?

      A: The appropriately named 335 Year War was a conflict between the the Netherlands and the Isles of Scilly that did not cause any deaths. The two nations declared war on each other in 1651 and, quite simply, forgot to declare peace until 1986.
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