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jan 1, 206 BC - The Magnetic Compass

Description:

The magnetic compass was first invented as a device for divination as early as the Chinese Han Dynasty (since about 206 BC). The compass was used in Song Dynasty China by the military for navigational orienteering by 1040–44, and was used for maritime navigation by 1111 to 1117.

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Technological Advancements

ByBenito
14 Sep 2018
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Date:

jan 1, 206 BC
Now
~ 2232 years ago

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