Myth of Time: Days of the Week
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The Babylonians named each of the days after one of the five planetary bodies known to them (Mercury, Venus, Mars, Jupiter, and Saturn) and after the Sun and the Moon, a custom later adopted by the Romans. For centuries the Romans used a period of eight days in civil practice, but in 321 CE Emperor Constantine established the seven-day week in the Roman calendar and designated Sunday as the first day of the week. Subsequent days bore the names Moon’s-day, Mars’s-day, Mercury’s-day, Jupiter’s-day, Venus’s-day, and Saturn’s-day. Constantine, a convert to Christianity, decreed that Sunday should be a day of rest and worship...
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