The Julian calendar was a reform of the Roman calendar. It ...
The hour is a unit of measurement of time. In modern ...
A calendar is a system of organizing days for social, ...
A lunar calendar is a calendar that is based on cycles of ...
Chronometry is the science of the measurement of time, or ...
Metric time is the measure of time interval using the ...
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用語
グロッサリ
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フォロワー
42
11
95
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64
6
16
25
40
5 用語
