History · Anniversaries

2050th anniversary: Chinese astronomers during the Han dynasty made the first precisely dated...

Name: 2050th anniversary: Chinese astronomers during the Han dynasty made the first precisely dated...
Start: 2022-05-10

Tue, May 10, 2022

5 yr ago

In 28 BC, Chinese astronomers during the Han dynasty made the first precisely dated observation of a sunspot.

Source, method and history

Source

Wikipedia

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Wikipedia "On this day" selected anniversary, 2050 years (-28 to 2022).

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annual

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