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jan 6, 1119 - The use of the Magnetic Compass.

Description:

These were the first reports of the Song Dynasty using a magnetic compass. The compass is different because it uses a smaller needle which is attached to a fixed stem. This is important when the Song travel in the Ocean.

Added to timeline:

Song Dynasty

ByAidan Steigelmann
29 Jan 2018

Date:

jan 6, 1119
Now
~ 905 years ago
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