Days of the Week! Why are there 7 days in a week? In this lesson, you will learn some fun fact about 7 days of the week.
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Days of the Week
We have 7 “days of the week” but just only 5 “weekdays” and 2 days of weekend. Do you know what they are? Let’s check the following information.
7 days of the week
According to the history, each day of the week was assigned to one of the classical planets – the 7 celestial bodies visible to the naked eye. These are the Sun, the Moon, Mars, Mercury, Jupiter, Venus, and Saturn which associated with Monday, Tuesday, Wednesday, Thursday, Friday, Saturday and Sunday.
- Monday = means “the Moon’s day”
- Tuesday = means “Tiw’s day”, the god of war and law.
- Wednesday = means “Wodan’s day”, the Germanic god Wodan.
- Thursday = named after the Norse god of thunder, Thor.
- Friday = means “day of Frigg”, the Norse goddess of fertility and love.
- Saturday = named after the Roman god and planet Saturn.
- Sunday = associated with the Sun.
The weekdays: Monday, Tuesday, Wednesday, Thursday, Friday.
The weekend: Saturday and Sunday.
The days of the week come from the Names of mythical figures, hence, the first letter of each day must be a CAPITAL letter.
The Order of the Weekdays
The Romans believed that each hour of the day was governed by one of the deities associated with the celestial bodies. According to this planetary hours system, the 1st hour of the 1st day of the week was thought to be governed by the Moon. Following the above order for each consecutive hour, the 2nd hour was steered by Saturn, the 3rd hour by Jupiter, and so on.
By applying this pattern to all 168 hours of the week, the Romans associated the 1st hour of each weekday with following celestial bodies:
- Day 1: Moon (Monday)
- Day 2: Mars (Tuesday)
- Day 3: Mercury (Wednesday)
- Day 4: Jupiter (Thursday)
- Day 5: Venus (Friday)
- Day 6: Saturn (Saturday)
- Day 7: Sun (Sunday)
This corresponds to the order of today’s 7-day week.
Abbreviations for days of the week
List of abbreviations for 7 days of the week.
- Mon., Mo. = Monday
- Tue., Tues. = Tuesday
- Wed. = Wednesday
- Thur.,Thurs. = Thursday
- Fri. = Friday
- Sat. = Saturday
- Sun. = Sunday
Days of the Week | Infographic