Historical eventFebruary 24303
Diocletianic Persecution
The Diocletianic Persecution, the last and most severe episode of the persecution of Christians in the Roman Empire, began with the publication of a first edict by Roman emperor Diocletian.
In context
- When
- Wednesday, February 24 3031723 years ago
- Category
- Historical eventA dated happening — a battle, treaty, launch, discovery, disaster or decision — recorded on this calendar day.
- Era
- 4th century · 300s
- 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: 303-02-24 – 313.
Place: Ancient Rome.
Type: persecution of Christians in the Roman Empire and massacre.
Deaths reported: 3000.
What came before
Background Prior persecutions Further information: Persecution of Christians in the Roman Empire From its first appearance to its legalization under Constantine , Christianity was an illegal religion in the eyes of the Roman state. [ 1 ] For the first two centuries of its existence, Christianity and its practitioners were unpopular with the people at large. [ 2 ] Christians were always suspect, [ 1 ] members of a "secret society" who communicated with a private code [ 3 ]
Who was involved
Involved: Diocletian.
What happened
Legacy The Diocletianic persecution was ultimately unsuccessful. As Robin Lane Fox has put it, it was simply "too little and too late". [ 1 ] Christians were never purged systematically in any part of the empire, and Christian evasion continually undermined the edicts' enforcement. [ 2 ] Some bribed their way to freedom. [ 3 ] The Christian Copres escaped on a technicality: to avoid sacrificing in court, he gave his brother power of attorney and had him do it instead. [ 4 ]
The Diocletianic or Great Persecution was the last and most severe persecution of Christians in the Roman Empire. In 303, the emperors Diocletian, Maximian, Galerius, and Constantius issued a series of edicts rescinding Christians' legal rights and demanding that they comply with traditional religious practices. Later edicts targeted the clergy and demanded universal sacrifice, ordering all inhabitants to sacrifice to the Roman gods.
February 24 through the years
Other entries on the same calendar day, in order.
- 303Diocletianic Persecution
- 2004Seismic magnitude scales
- 2006President of the Philippines
- 2007Reconnaissance satellite
- 2008Fidel Castro
- 2011Space Shuttle Discovery
- 2015Uherský Brod
- 2015Metrolink (California)
- 2016Tara Air Flight 193
- 2020Mahathir Mohamad
- 2022Russo-Ukrainian war
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
“Diocletianic Persecution”, What's On This Date, https://whatsonthisdate.com/app/event/diocletianic-persecution-303-february-24, 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 Diocletianic Persecution happen?
February 24 303 — 1723 years ago, on a Wednesday.
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.