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The reason for February is only 28 or 29 days
Each calendar month has between 30 and 31 days, but February is only 28 or 29 days if it is a leap year, due to the retention of the previous Roman calendar.
Calendar
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Interesting things on February 29 less known
In the West 29/2 is considered a day for women to propose, the day they can confess to any guy.
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The origin 'no one knows - no one knows' in the names of the months
Have you ever wondered behind the names of January, February ... is that a mysterious story?
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Why is 'Monday' the first day of the week?
Two of the earliest civilizations that used the 7-day weekday calendar were Babylonians and Jews. However, the naming of the days comes from ancient Egyptian astrologers…
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How to calculate lunar calendar month
To calculate whether the lunar year has a leap month, we take the calendar year divided by 19, if divided by or for balances 3, 6, 9, 11, 14, 17 then that year will have…
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How to calculate the leap month in the lunar calendar?
To calculate the leap month as well as the lunar calendar in general, humans must identify the Soc points and the central points.
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The whole city is an astronomical calendar
New research results on the ancient city of Petra in Jordan show that this place was built to distribute sunlight into sacred places like celestial bodies that stand out…
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The longest night of the year
According to the Chinese calendar, four seasons in a year can be divided according to astronomy, such as Spring, Summer, Autumn and Winter. In which Dong Chi is the begi…
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October 1582 calendar with 10 days does not exist
Before 1582, Europeans and colonies used a calendar based on the Julian calendar given by Emperor Julius Caesar in 46 BC.
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The Maya predicted the solar eclipse before 8 centuries
Recent research shows that ancient Mayans could accurately predict astronomical events that took place centuries later.
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Why are Vietnamese and Chinese calendar different?
From 25-6 to 24-7 solar calendar, Chinese and Chinese lunar calendar (China) have a difference of one day. Meanwhile, in Vietnam, there exist both Vietnamese and Chinese…
1001 mystery
Who teaches the Maya how to calculate the calendar?
The Mayan created a boom in mathematics, to be able to record events over the years to determine the time of planting and harvesting, accurately calculating the weather…
1001 mystery
Why is the first-born boy and the girl on the full moon difficult to raise?
From ancient times to now, people still have sentences
1001 mystery
10 thrilling things about Maya civilization
Maya civilization not only stands out by the well-developed ancient writing system, but also has incredible art, architecture and astronomical and mathematical systems.