Famous Dates in Roman Numerals
A curated set of high-confidence historical dates. Each Roman form is produced by this site’s date converter. Date order is labeled explicitly—do not assume MM/DD versus DD/MM from the Roman string alone.
| Date (Month Day, Year) | Roman (MDY) | Roman (DMY) | What happened |
|---|---|---|---|
|
July 4, 1776
US history
|
VII/IV/MDCCLXXVI | IV/VII/MDCCLXXVI | United States Declaration of Independence adopted by the Continental Congress. |
|
October 14, 1066
World history
|
X/XIV/MLXVI | XIV/X/MLXVI | Battle of Hastings; Norman conquest of England begins in earnest. |
|
October 12, 1492
World history
|
X/XII/MCDXCII | XII/X/MCDXCII | Christopher Columbus’s first voyage reaches land in the Caribbean. |
|
July 20, 1969
Science
|
VII/XX/MCMLXIX | XX/VII/MCMLXIX | Apollo 11 Moon landing; Neil Armstrong and Buzz Aldrin walk on the Moon. |
|
November 9, 1989
World history
|
XI/IX/MCMLXXXIX | IX/XI/MCMLXXXIX | Opening of the Berlin Wall checkpoints; a landmark moment in the end of the Cold War era. |
|
December 17, 1903
Science
|
XII/XVII/MCMIII | XVII/XII/MCMIII | Wright brothers’ first powered airplane flights at Kitty Hawk, North Carolina. |
|
April 15, 1912
World history
|
IV/XV/MCMXII | XV/IV/MCMXII | RMS Titanic sinks in the North Atlantic after striking an iceberg. |
|
June 6, 1944
World history
|
VI/VI/MCMXLIV | VI/VI/MCMXLIV | D-Day: Allied landings in Normandy during World War II. |
|
August 15, 1969
Arts & culture
|
VIII/XV/MCMLXIX | XV/VIII/MCMLXIX | Woodstock music festival opens in Bethel, New York. |
|
January 1, 2000
Calendar
|
I/I/MM | I/I/MM | Start of the year 2000 in the Gregorian calendar (Y2K transition day). |
|
September 11, 2001
US history
|
IX/XI/MMI | XI/IX/MMI | September 11 attacks in the United States. |
|
November 19, 1863
US history
|
XI/XIX/MDCCCLXIII | XIX/XI/MDCCCLXIII | Abraham Lincoln delivers the Gettysburg Address. |
How to read the Roman columns
MDY means month/day/year order. DMY means day/month/year. The same three Roman components can be ambiguous without that label—especially for dates like VIII / VIII / MMXXVI.
Convert your own dates with the date converter or tattoo date guide.