Tuesday October 5, 1582
A date scroll with Latin text from “The Extremes of Good and Evil” by Cicero, written in 45 BC.

October 5, 1582: Day of the Week

October 5, 1582 was the 278th day of the year 1582 in the Gregorian calendar. There were 87 days remaining until the end of the year. The day of the week was Tuesday.

The day of the week for October 5, 1582 under the old Julian calendar was Friday. 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 441 years old today. If that same person saved a Penny every day starting at age 7, then by now that person has accumulated $1,588.60 today.

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Here’s the October 1582 Gregorian calendar. You can also browse the full year monthly 1582 calendar.

October 1582
SunMonTueWedThuFriSat
     12
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1011121314
      

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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 5, 1582 by the Numbers

  • 161,417 days since October 5, 1582
  • 441 years, 11 months, and 9 days ago
  • 5,303 months since then
  • October 5 is in the 40th week of the year 1582 (ISO 8601)
  • 23,059 weeks ago
  • The year 1582 is not a leap year

October 5, 1582 Historical Event(s)

1582
Because of the implementation of the Gregorian calendar this day does not exist in this year in Italy, Poland, Portugal and Spain.

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 5, 1582). 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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