Monday September 16, 1489
A date scroll with Latin text from โ€œThe Extremes of Good and Evilโ€ by Cicero, written in 45 BC.

September 16, 1489: Day of the Week

September 16, 1489 was the 259th day of the year 1489 in the Gregorian calendar. There were 106 days remaining until the end of the year. The day of the week was Monday.

The day of the week for September 16, 1489 under the old Julian calendar was Wednesday. 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 535 years old today. If that same person saved a Penny every day starting at age 5, then by now that person has accumulated $1,936.65 today.

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Here’s the September 1489 Gregorian calendar. You can also browse the full year monthly 1489 calendar.

September 1489
SunMonTueWedThuFriSat
1234567
891011121314
15161718192021
22232425262728
2930     

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Zodiac & Birthstone

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

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September 16, 1489 by the Numbers

  • 195,491 days since September 16, 1489
  • 535 years, 2 months, and 25 days ago
  • 6,422 months since then
  • September 16 is in the 38th week of the year 1489 (ISO 8601)
  • 27,927 weeks ago
  • The year 1489 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 (September 16, 1489). 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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