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Apr 8, 632
death
Yet at that time, a new empire was forming. Islam was spreading among the people of Arabia. At 632 C.E when Prophet Muhammad, Sall-Allahu alayhi wa sallam, died, nearly all of Arabia had become Muslim. Islam had raised these people from ignorance and darkness into light. The Muslims started to become the most advanced civilization of that time. -
Period: to
Science
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physics and astronomy
We know the distances to 70 of the nearest stars. There are no galaxies except for the Milky Way, although some astronomers do believe that some of the fuzzy "nebulae" seen in the night sky are separate, very distant galaxies. The universe is unchanging. Newton's laws are used to explain all physical phenomena. The elements that have been identified are believed to be built of indivisible atoms that are the "essence" of the element. Physicists believe there is little more to be discovered in th -
death
a deadly worldwide outbreak of the flu points out the limits of the powers of medicine, as well as the destructive side effects of war -
death
a potent substance that can kill bacteria is isolated in the laboratory, but it will be nearly twenty years before it is used to combat infection and disease. -
machines
Many mechanical machines are built using wheels and levers, as these are the simplest of machines or simple machines. A simple machine is defined as a mechanical device that either changes the direction of a force or the magnitude of a force. A force is anything that causes an object to accelerate. In general, simple machines multiply force through mechanical advantage or leverage.