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The Great Wall was started on.
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He died at the age of 49.
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The First Emperor started to rule China in 246 BC.
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The Shan Dynasty ended in 1040 BC.
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The Shan Dynasty started in 1750 BC.
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The Hisa Dynasty ended in 1750 BC.
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The crossbow was first used in 2000 BC
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The compass was invrnted 2000 BC.
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He was born in 259 BC.
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The Hsia Dynasty was started in 2200 BC.