The “Berlin Gold Hat,” made between 1000-800 BCE. This hat, which resembles several others that have
The “Berlin Gold Hat,” made between 1000-800 BCE. This hat, which resembles several others that have been founds in Germany and France, is decorated with a lunisolar (combination between lunar and solar) calendar. The symbols and rings around the hat represent days, and performing various mathematical operations between them would allow people to convert dates from a lunar calendar to a solar one, or vice versa.{WHF} {HTE} -- source link
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