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It was only in 2000 BC that the discs began to be hollowed out to make a lighter wheel. -
The earliest form of writing appeared almost 5,500 years ago in Mesopotamia. Although many other nations in the Near East, China and Mesoamerica at the time came up with their own forms of writing in around 3200 BC. -
The invention of wheel further contributed to the development of chariots which served both as a war machine and a transporting equipment for the elite of the society. -
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The Chinese Bronze Civilization is the one who for the first time created kites as they had the materials like silk fabric and high strength silk which are required for the building of kites.