Monday July 25, 1521
A date scroll with Latin text from “The Extremes of Good and Evil” by Cicero, written in 45 BC.

July 25, 1521: Day of the Week

July 25, 1521 was the 206th day of the year 1521 in the Gregorian calendar. There were 159 days remaining until the end of the year. The day of the week was Monday.

The day of the week for July 25, 1521 under the old Julian calendar was Thursday. Did you notice the difference with the Gregorian calendar?

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

A person born on this day will be 503 years old today. If that same person saved a Dime every day starting at age 6, then by now that person has accumulated $18,186.90 today.

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Here’s the July 1521 Gregorian calendar. You can also browse the full year monthly 1521 calendar.

July 1521
SunMonTueWedThuFriSat
     12
3456789
10111213141516
17181920212223
24252627282930
31      

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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 25, 1521 by the Numbers

  • 184,060 days since July 25, 1521
  • 503 years, 11 months, and 7 days ago
  • 6,047 months since then
  • July 25 is in the 30th week of the year 1521 (ISO 8601)
  • 26,294 weeks ago
  • The year 1521 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 25, 1521). 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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