Sunday October 16, 1233
A date scroll with Latin text from โ€œThe Extremes of Good and Evilโ€ by Cicero, written in 45 BC.

October 16, 1233: Day of the Week

October 16, 1233 was the 289th day of the year 1233 in the Gregorian calendar. There were 76 days remaining until the end of the year. The day of the week was Sunday.

The day of the week for October 16, 1233 under the old Julian calendar was Sunday. Did you notice the similarity with the Gregorian calendar?

If you are trying to learn French then this day of the week in French is dimanche.

A person born on this day will be 790 years old today. If that same person saved a dollar every day starting at age 4, then by now that person has accumulated $287,421.00 today.

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Here’s the October 1233 Gregorian calendar. You can also browse the full year monthly 1233 calendar.

October 1233
SunMonTueWedThuFriSat
      1
2345678
9101112131415
16171819202122
23242526272829
3031     

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Zodiac & Birthstone

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

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October 16, 1233 by the Numbers

  • 288,882 days since October 16, 1233
  • 790 years, 11 months, and 5 days ago
  • 9,491 months since then
  • October 16 is in the 41st week of the year 1233 (ISO 8601)
  • 41,268 weeks ago
  • The year 1233 is not 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 (October 16, 1233). 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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