Friday August 4, 1511
A date scroll with Latin text from โ€œThe Extremes of Good and Evilโ€ by Cicero, written in 45 BC.

August 4, 1511: Day of the Week

August 4, 1511 was the 216th day of the year 1511 in the Gregorian calendar. There were 149 days remaining until the end of the year. The day of the week was Friday.

The day of the week for August 4, 1511 under the old Julian calendar was Monday. 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 viernes.

A person born on this day will be 513 years old today. If that same person saved a Half dollar every day starting at age 7, then by now that person has accumulated $92,573.00 today.

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Here’s the August 1511 Gregorian calendar. You can also browse the full year monthly 1511 calendar.

August 1511
SunMonTueWedThuFriSat
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Zodiac & Birthstone

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

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August 4, 1511 by the Numbers

  • 187,703 days since August 4, 1511
  • 513 years, 10 months, and 28 days ago
  • 6,166 months since then
  • August 4 is in the 31st week of the year 1511 (ISO 8601)
  • 26,814 weeks ago
  • The year 1511 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 (August 4, 1511). 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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