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What animals and plants became extinct during the Precambrian Era?

The Ediacara biota were soft-bodied creatures that resembled fronds, discs or tubes. Scientists are not quite sure if they were plants or animals. They might have been types of fungi or microbes that formed colonies. At the time, there were no flowering plants.\nThe Ediacara biota flourished until the very end of the Precambrian Era, a time which is known as the Ediacaran period. This was over half a billion years ago. What fascinates scientists about these creatures is that they formed fossils in the first place, even though they had soft bodies.\nSome acritarchs are fossils of the tiny cysts..

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Who established the first thirteen colonies?

The London Company was the first to establish a colony in 1607 at Jamestown, Virginia. The Plymouth company, let by the Puritans, established Plymouth in 1620 in the colony that eventually became Massachusetts.\nThe Puritans branched off to form the colonies of Connecticut, Rhode Island and New Hampshire. John Wheelwright, a Puritan and adventure, founded the third colony New Hampshire in 1623. The Puritans who established the Connecticut and Rhode Island colonies, founded in 1635 and 1636 respectively, wanted less or more religious restriction. For instance, Thomas Hooker and his compatriots ..

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Why did the Apartheid begin?

Apartheid means "separation" in the Afrikaans language of South Africa. Although South Africa had a history of racism going back to colonial rule in the early 1800s, it was not until Daniel François Malan of the National Party became prime minister that the systematic and total separation of the races began. Government leaders stated that the apartheid system was for the benefit of all South Africans.\nThe National Party leaders categorized people into four racial groups: white, black, colored and Indian. The racial groups were further split into nations. For example, the white group included..

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Which presidents have been impeached?

On Feb. 24, 1868, the U.S. House of Representatives impeached Johnson for violating the Tenure of Office Act by removing Edwin Stanton as Secretary of War. The Tenure of Office Act required the president to receive Congressional approval before dismissing an appointed official. The U.S. Senate voted 35 to 19 in favor of finding Johnson guilty. However, this was one vote short of the required number of vote, thus acquitting Johnson.\nIn 1999, the House of Representatives impeached Clinton on two counts resulting from his conduct during the fallout from his affair with Monica Lewinsky. The Senat..

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What weapons did the Woodland Cree use to hunt?

The Cree Indians also used snares to catch rabbits and other small animals. They represent a large, self-governing tribe made up of about 200,000 people in the United States and Canada. The Woodland Cree are from Alberta, Canada, near the town of Peace River, where the Woodland Cree First Nation has a population of about 1,000 people. The band is governed by a chief and four councilors, while a band manager oversees everyday operations.\nThe Woodland Cree maintain their own schools and public-works departments. The Cree constitute the largest indigenous population in Alberta.

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When did the Dust Bowl start?

The Dust Bowl is also commonly referred to as the Dirty Thirties. During the early parts of the century, farmers lacked an understanding of the ecology in the Midwest. They employed deep plowing methods that led to over-cultivation of the land. As a result, the topsoil was eroded and reduced to a fine powder. This, in combination with drought conditions and winds, caused huge dust storms throughout the decade that devastated the agriculture, economy and way of life for millions of Americans.

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Who was Susan B. Anthony?

Anthony was born in 1820 in Adams, Massachusetts, and worked as a teacher prior to engaging in the fight for women's rights. She decided to dedicate her life to woman's suffrage after she became active in temperance and found that she could not speak at rallies because she was a woman. In 1851, Anthony met Elizabeth Cady Stanton, who became her lifelong companion in the field of women's rights. Together, they founded the New York Women's State Temperance Society, the Women's Loyal National League and the American Equal Rights Association.\nIn 1872, Anthony voted illega..

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What are the facts behind the assassination of Martin Luther King, Jr.?

After spending the afternoon planning a march on Washington D.C., King stepped out onto the second story balcony of his motel room. At approximately 6:05 p.m., a single .30 caliber bullet fired from a Remington 760 rifle struck him in the face and traveled to his neck, severing his jugular vein. King was immediately rushed to Saint Joseph’s Hospital, but doctors could not resuscitate him and pronounced him dead at 7:05 that evening.\nWitnesses described a man later identified as James Earl Ray as fleeing from a nearby boarding house shortly after the incident. Police recovered the murder wea..

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How was the government set up in the Aztec empire?

In the ancient Aztec empire, land was owned by groups of people rather than a single individual. These people together formed the calpulli. The calpulli of a region would designate leaders who formed a city council. From the city council, four people would be chosen to be executive leaders. From them, one person was designated as the supreme leader. These individuals were known as tlatcani. The supreme leader in Tenochtitlan was known as the Huey Tlatcani, which means "great speaker," because that person not only ruled the city but the entire empire. Although this individual was the leader of ..

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What are some of the differences between the Tang and Song dynasties?

While the Tang and Song dynasties shared much in common, there were a couple of major differences in the way they ruled over the populous territory of China. During both periods China experiences political, cultural and social blossoming. Some common traits include the development of trade, the flourishing of painting and poetry and the improvement of bureaucracy. Even though both Tang and Song were Chinese dynasties, they did not rule over the same territory. The Song power was centered on the southeastern part of the country, whereas the Tang power extended over much of modern China, as well..

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