Here's more about Korean and Western days of the week.
Tuesday β€” ν™”μš”μΌ ν™” comes from the ν•œμž 火, which means fire. ν™”μ„± is Mars. Mars is the god of war, which can be associated with fire. Tuesday is Tiu’s day. Tiu is the Anglo-Saxon god of war, so he is roughly equivalent to Mars. (Romans called Tuesday the day of Mars.)
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