# What Day of the Week

What day of the week is this date?

## June 19, 1439: Day of the Week

June 19, 1439 was the 170th day of the year 1439 in the Gregorian calendar. There were 195 days remaining until the end of the year. The day of the week was Wednesday.

The day of the week for June 19, 1439 under the old Julian calendar was Friday. Did you notice the difference with the Gregorian calendar?

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

A person born on this day will be 584 years old today. If that same person saved a dollar every day starting at age 4, then by now that person has accumulated \$211,941.00 today.

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Here’s the June 1439 Gregorian calendar. You can also browse the full year monthly 1439 calendar.

June 1439
SunMonTueWedThuFriSat
1
2345678
9101112131415
16171819202122
23242526272829
30

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### Zodiac & Birthstone

Gemini is the zodiac sign of a person born on this day. Pearl is the modern birthstone for this month. Moonstone 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 (June 19, 1439). 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.

Now 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.