Historical eventJanuary 31314
Pope Sylvester I
Sylvester I (bust depicted), during whose pontificate many churches in Rome were constructed by Constantine the Great, began his reign as pope.
In context
- When
- Sunday, January 31 3141712 years ago
- Category
- Historical eventA dated happening — a battle, treaty, launch, discovery, disaster or decision — recorded on this calendar day.
- Era
- 4th century · 310s
- Calendar
- Julian — as recorded at the time
- Recorded from
- Wikipedia “On this day” feed
Dates before 15 October 1582 are in the Julian calendar, so the weekday shown follows the Julian reckoning of the time.
At a glance
Dates: From 314.
What happened
Sylvester I (bust depicted), during whose pontificate many churches in Rome were constructed by Constantine the Great, began his reign as pope.
January 31 through the years
Other entries on the same calendar day, in order.
- 314Pope Sylvester I
- 2001Japan Airlines
- 2003Waterfall rail accident
- 2007Aqua Teen Hunger Force
- 2009Kenya
- 2013Torre Ejecutiva Pemex
- 2019Abdullah of Pahang
- 2020United Kingdom
- 2022Sue Gray, Baroness Gray of Tottenham
- 2023Boeing 747
- 2025Med Jets Flight 056
Sources
- Wikipedia article (text, CC BY-SA 4.0)
- Licence: CC BY-SA 4.0 for adapted text · how we source this
Cite this page
“Pope Sylvester I”, What's On This Date, https://whatsonthisdate.com/app/event/pope-sylvester-i-314-january-31, accessed October 29, 2026.
Cite the underlying source as well — the source links above go to the record this entry is adapted from.
Questions about this entry
When did Pope Sylvester I happen?
January 31 314 — 1712 years ago, on a Sunday.
Is this a Julian or a Gregorian date?
It is the date as recorded at the time, on the Julian calendar. The Gregorian equivalent falls about ten days later; sources from different countries may give either.
Where does this text come from?
Wikipedia “On this day” feed. Summaries are short adaptations that link back to the source, not reprints.
How do I cite this page?
Use the ready-made citation near the sources at the bottom of the page, and follow the source link to cite the underlying record as well.
One entry a day, by email
The standout entry each morning. Kept for this site only.
Text adapted from Wikipedia under CC BY-SA 4.0 and from Wikidata (CC0). Images come from Wikimedia Commons; credit and licence are shown with each image. Editorial entries are © What's On This Date. Sources & licensing · How this site works.