Monday April 10, 1200
A date scroll with Latin text from β€œThe Extremes of Good and Evil” by Cicero, written in 45 BC.

April 10, 1200: Day of the Week

April 10, 1200 was the 101st day of the year 1200 in the Gregorian calendar. There were 265 days remaining until the end of the year. The day of the week was Monday.

The day of the week for April 10, 1200 under the old Julian calendar was Monday. Did you notice the similarity with the Gregorian calendar?

If you are trying to learn Japanese then this day of the week in Japanese is Getsuyōbi.

A person born on this day will be 824 years old today. If that same person saved a dollar every day starting at age 4, then by now that person has accumulated $299,744.00 today.

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Here’s the April 1200 Gregorian calendar. You can also browse the full year monthly 1200 calendar.

April 1200
SunMonTueWedThuFriSat
      1
2345678
9101112131415
16171819202122
23242526272829
30      

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Zodiac & Birthstone

Aries is the zodiac sign of a person born on this day. Diamond is the modern birthstone for this month. Opal is the mystical birthstone from Tibetan origin that dates back over a thousand years.

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April 10, 1200 by the Numbers

  • 301,205 days since April 10, 1200
  • 824 years, 8 months, and 1 day ago
  • 9,896 months since then
  • April 10 is in the 15th week of the year 1200 (ISO 8601)
  • 43,029 weeks ago
  • The year 1200 is a leap year

Gregorian versus the old Julian calendar

A note to students, teachers, scholars and anyone else passionate about this topic. As stated in the front page, this website is using the Gregorian calendar as the basis for all “day of the week” computation whether or not the Gregorian calendar is relevant for the date in question (April 10, 1200). Educators should point out the primary reason why Pope Gregory XIII introduced a new calendar system in October 1582. That is, to make the computation for the annual date of Easter more accurate since it is the foundation of the Christian faith.

Even with that purpose in mind, the Gregorian calendar too will become out of sync. It has a known approximation error of about one day for every 7,700 years assuming a constant time interval between vernal equinoxes (which is not true). This is better compared to the one day for every 128 years error of the Julian calendar.

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