Friday October 13, 1071
A date scroll with Latin text from β€œThe Extremes of Good and Evil” by Cicero, written in 45 BC.

October 13, 1071: Day of the Week

October 13, 1071 was the 286th day of the year 1071 in the Gregorian calendar. There were 79 days remaining until the end of the year. The day of the week was Friday.

The day of the week for October 13, 1071 under the old Julian calendar was Thursday. Did you notice the difference with the Gregorian calendar?

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

A person born on this day will be 953 years old today. If that same person saved a Nickel every day starting at age 6, then by now that person has accumulated $17,307.45 today.

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Here’s the October 1071 Gregorian calendar. You can also browse the full year monthly 1071 calendar.

October 1071
SunMonTueWedThuFriSat
1234567
891011121314
15161718192021
22232425262728
293031    

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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 13, 1071 by the Numbers

  • 348,341 days since October 13, 1071
  • 953 years, 8 months, and 21 days ago
  • 11,444 months since then
  • October 13 is in the 41st week of the year 1071 (ISO 8601)
  • 49,763 weeks ago
  • The year 1071 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 13, 1071). 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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