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Thursday January 25, 1151

January 25, 1151: Day of the Week

January 25, 1151 was the 25th day of the year 1151 in the Gregorian calendar. There were 340 days remaining until the end of the year. The day of the week was Thursday.

The day of the week for January 25, 1151 under the old Julian calendar was Thursday. Did you notice the similarity with the Gregorian calendar?

If you are trying to learn Japanese then this day of the week in Japanese is Mokuyōbi.

A person born on this day will be 872 years old today. If that same person saved a dollar every day starting at age 7, then by now that person has accumulated $316,181.00 today.

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Here’s the January 1151 Gregorian calendar. You can also browse the full year monthly 1151 calendar.

January 1151
SunMonTueWedThuFriSat
 123456
78910111213
14151617181920
21222324252627
28293031   

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Zodiac & Birthstone

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

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 (January 25, 1151). 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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