Wednesday December 9, 1531
A date scroll with Latin text from “The Extremes of Good and Evil” by Cicero, written in 45 BC.

December 9, 1531: Day of the Week

December 9, 1531 was the 343rd day of the year 1531 in the Gregorian calendar. There were 22 days remaining until the end of the year. The day of the week was Wednesday.

The day of the week for December 9, 1531 under the old Julian calendar was Saturday. 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 mercredi.

A person born on this day will be 492 years old today. If that same person saved a Cent every day starting at age 3, then by now that person has accumulated $1,787.14 today.

Coffee Love Holy Toledo! Did you know that coffee and word games are an excellent combination to sharpen your vocabulary? Let’s give it a quick spin. Within 30 seconds, how many words can you think of from these letters ZXWZIMEOZOMZE? Check your answers here: Unscramble words ZXWZIMEOZOMZE. (Sponsored by WordFinder.Cafe)

Here’s the December 1531 Gregorian calendar. You can also browse the full year monthly 1531 calendar.

December 1531
SunMonTueWedThuFriSat
  12345
6789101112
13141516171819
20212223242526
2728293031  

My Birthday Ninja Are you not curious to discover some fun facts about your birthday? Find out what happened on my birthday and what was the number one song on your day of birth. Know the meaning of your special day and who shares your birthday! (Sponsored link)

Zodiac & Birthstone

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

December 9, 1531 Historical Event(s)

1531
The Virgin of Guadalupe first appears to Juan Diego at Tepeyac, Mexico City.

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 (December 9, 1531). 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.

Share InfoNow try another date like anniversaries, birthdays of someone you know or any other date that is special to you. Don’t forget to share the info to your friends, loved ones or social media followers. Who knows, they might appreciate and thank you for it.