Tuesday December 25, 1066
A date scroll with Latin text from β€œThe Extremes of Good and Evil” by Cicero, written in 45 BC.

December 25, 1066: Day of the Week

December 25, 1066 was the 359th day of the year 1066 in the Gregorian calendar. There were 6 days remaining until the end of the year. The day of the week was Tuesday.

The day of the week for December 25, 1066 under the old Julian calendar was Monday. Did you notice the difference with the Gregorian calendar?

If you are trying to learn Spanish then this day of the week in Spanish is martes.

A person born on this day will be 958 years old today. If that same person saved a Nickel every day starting at age 6, then by now that person has accumulated $17,395.20 today.

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Here’s the December 1066 Gregorian calendar. You can also browse the full year monthly 1066 calendar.

December 1066
SunMonTueWedThuFriSat
      1
2345678
9101112131415
16171819202122
23242526272829
3031     

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Zodiac & Birthstone

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

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December 25, 1066 by the Numbers

  • 350,096 days since December 25, 1066
  • 958 years, 6 months, and 11 days ago
  • 11,502 months since then
  • December 25 is in the 52nd week of the year 1066 (ISO 8601)
  • 50,013 weeks ago
  • The year 1066 is not a leap year

December 25, 1066 Historical Event(s)

1066
William the Conqueror is crowned king of England, at Westminster Abbey, London.

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 (December 25, 1066). 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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