Thursday July 23, 1237
A date scroll with Latin text from β€œThe Extremes of Good and Evil” by Cicero, written in 45 BC.

July 23, 1237: Day of the Week

July 23, 1237 was the 204th day of the year 1237 in the Gregorian calendar. There were 161 days remaining until the end of the year. The day of the week was Thursday.

The day of the week for July 23, 1237 under the old Julian calendar was Thursday. Did you notice the similarity with the Gregorian calendar?

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

A person born on this day will be 787 years old today. If that same person saved a Quarter every day starting at age 6, then by now that person has accumulated $71,328.75 today.

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Here’s the July 1237 Gregorian calendar. You can also browse the full year monthly 1237 calendar.

July 1237
SunMonTueWedThuFriSat
   1234
567891011
12131415161718
19202122232425
262728293031 

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Zodiac & Birthstone

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

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July 23, 1237 by the Numbers

  • 287,506 days since July 23, 1237
  • 787 years, 1 month, and 29 days ago
  • 9,445 months since then
  • July 23 is in the 30th week of the year 1237 (ISO 8601)
  • 41,072 weeks ago
  • The year 1237 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 (July 23, 1237). 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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