Friday July 20, 1218
A date scroll with Latin text from “The Extremes of Good and Evil” by Cicero, written in 45 BC.

July 20, 1218: Day of the Week

July 20, 1218 was the 201st day of the year 1218 in the Gregorian calendar. There were 164 days remaining until the end of the year. The day of the week was Friday.

The day of the week for July 20, 1218 under the old Julian calendar was Friday. 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 viernes.

A person born on this day will be 806 years old today. If that same person saved a Dime every day starting at age 7, then by now that person has accumulated $29,200.60 today.

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Here’s the July 1218 Gregorian calendar. You can also browse the full year monthly 1218 calendar.

July 1218
SunMonTueWedThuFriSat
1234567
891011121314
15161718192021
22232425262728
293031    

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Zodiac & Birthstone

Cancer 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 20, 1218 by the Numbers

  • 294,563 days since July 20, 1218
  • 806 years, 5 months, and 24 days ago
  • 9,677 months since then
  • July 20 is in the 29th week of the year 1218 (ISO 8601)
  • 42,080 weeks ago
  • The year 1218 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 20, 1218). 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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