http://en.wikipedia.org/wiki/Kite#History
Kites made their appearance over three thousand years ago, in China
They were invented by the Chinese over 2,000 years ago.
The 31 dynasties ruled Egypt over 2800 years
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Kites Over Washington - 2009 was released on: USA: 11 November 2009 (video premiere)
Most people think kites originated in China. The exact date of first use is unknown but well over two thousand years ago.
Diamonds are very valuable because they are rare and precious metals. Diamonds were first mined over 2800 years ago in India.
Kites originated in ancient China after being developed gradually over many years. This was at least 1500 years ago. The names of the Chinese who invented it were according to Chinese tradition the philosophers Mo Zi and Lu Ban.
The exact origin of kite is uncertain, but it is believed that it was invented in China over two thousand years ago.By an other tradition, kites were invented in the Indonesian Archipelago and the South Sea Islands. The link below describes the origins of the kite in detail:
just over 2800 LB.
Since no one knows exactly when Euclid was born, it's tough to pin down. Somewhere over 2800 years old.
over 2000 years