TODAY IN THE HISTORY OF PSYCHOLOGY
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19 novembro 2016
When is the earliest diagnosed cancer in a human?A. 2.2 million years agoB. 1.8 million years...
When is the earliest diagnosed cancer in a human?
The Fulani Jihad, from 1804–1808 was a military contest in...
The Fulani Jihad, from 1804–1808 was a military contest in present-day Nigeria and Cameroon. The war began when Usman dan Fodio, a prominent Islamic scholar and teacher, was exiled from Gobir by the king of Gobir, Yunfa, who was one of his former students. Usman dan Fodio vowed assembled a Fulani army to lead in jihad (or holy war) against the Hausa kingdoms in what is today the north of Nigeria. The Hausa had imposed a harsh system of conscription and taxation. The Fulani, largely pastoral, were often the victims of Hausa taxation, land control, and other discriminatory practices. The Fulani were also Muslim (although the Hausa were too, but of a different kind). In other words, the Fulani had the perfect motivation to help Usman end the Hausa kingdoms. The forces of Usman dan Fodio slowly took over more and more of the Hausa kingdoms. In 1808 they took Gobir and executed Yunfa. The war resulted in the creation of the Sokoto Caliphate, headed by Usman dan Fodio, which became one of the largest states in Africa in the 1800s.
Terra gelatinosa intriga visitantes de parque escocês
Um visitante capturou imagens do chão balançando para cima e para baixo em um parque na Escócia.
O fenômeno peculiar, que foi descoberto no Parque Aberdeen’s Hazlehead, tem-se revelado um sucesso entre os moradores que têm utilizado o fenômeno como um trampolim improvisado.
Segundo o professor John Howel, geocientista da Universidade de Aberdeen, o estranho comportamento do solo é devido à água acumulada abaixo da camada superior da grama.
“Quando há um vazamento de água subterrâneo a pressão pode se acumular e soltar o solo”, disse ele.
“Devido ao relvado estar emaranhado juntos, eles formam uma camada impermeável que se comporta como uma cama de água”.
“Este fenômeno é raro, mas ele normalmente ocorre ocorre em parques, campos de golfe ou gramados, onde a relva não é tão bem ligada ao solo subjacente”.
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