Writing made Egypts complex civilization possible because with the ability to write they were able to keep records of lots of things such as production, and take censuses. They would also be able to keep construction records which would help them be able to recreate a certain type of technology or a certain type of building.
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Muslim scholars began obtaining Greek treatises and started
their study and translation into Arabic a few centuries after
the Hijrah (622 A.D.) They critically analyzed, collated , corrected
and supplemented substantially the Greek science and philosophy.
After this period began what is known as the Golden Age
of Islam, which lasted for over two centuries. It is here we find
many of the great scientists of Islam who literally left behind
hundreds and thousands of books on the various branches of science.
The Black Death is considered as the deadliest pandemic in history. There were four main forms of this plague namely: bubonic, pneumonic, septicemic and enteric plague. It wiped out around 200 million people from Europe and Asia. It was caused by yersinia pestits, a type of bacteria transmitted through flea bites or inhalation. One of the main reasons why the plague spread quickly was the terrible health condition of the city dwellers due to poverty and malnutrition. The great famine of 1315 struck many parts of Europe and it lasted for almost seven years. The famine ultimately weakened the immune system of the dwellers in the cities.
Industrialization is the main cause of urbanization in America, and one of reasons for America no longer being a farm dependent economy. Industrialization is also a reason for many technological advances and introduced the American economy of being able to own businesses and factories for profit.
This is one of the basic beliefs of the Mormons
They are a church based on Christianity which was found by Joseph Smith. He believed that property should be owned commonly and not by individuals because people wouldn't be greedy then. This also applied to marriage since polygamy was encouraged so as to prevent only one person having access to something.