Rinchinbal Khan
b. 1326
Mongolian emperor
On This Day · The 121st day of the year
May 1 carries 10 recorded events spanning between 305 and 2011. Diocletian and Maximian retire from the office of Roman emperor.
Compiled & reviewed by Roman Tailor · Last reviewed July 13, 2026
May 1 is the 121st day of the year. It marks 10 notable events in history, dated between 305 and 2011. Famous people born on May 1 include Rinchinbal Khan, Mark W. Clark and Judith Sargent Murray.
Few dates reach as far back as May 1: its recorded history runs unusually deep, stretching to 305. Its center of gravity is the 21st century, and conflict is a recurring thread.
Taurus is the sign for May 1 — read more on the Taurus page, or see May's birthstone & birth flower.
Release data from TMDB & IGDB.
Diocletian and Maximian retire from the office of Roman emperor.
The Nea Ekklesia is inaugurated in Constantinople, setting the model for all later cross-in-square Orthodox churches.
The Act of Union joining England and Scotland to form the Kingdom of Great Britain takes effect.
The original Chicago Board of Trade Building opens for business.
"Pluto" is officially proposed for the name of the newly discovered dwarf planet by Vesto Slipher in the Lowell Observatory Observation Circular. The name quickly catches on.
The Empire State Building is dedicated in New York City.
World War II: German radio broadcasts news of Adolf Hitler's death, falsely stating that he has "fallen at his command post in the Reich Chancellery fighting to the last breath against Bolshevism and for Germany". The Soviet flag is raised over the Reich Chancellery, by order of Stalin.
Cyprus, Czech Republic, Estonia, Hungary, Latvia, Lithuania, Malta, Poland, Slovakia, and Slovenia join the European Union, celebrated at the residence of the Irish President in Dublin.
Faisal Shahzad attempts to detonate a car bomb in Times Square, but the bomb fails to go off.
Pope John Paul II is beatified by his successor, Pope Benedict XVI.
b. 1326
Mongolian emperor
b. 1896
American general
b. 1751
American poet and playwright
b. 1946
Hong Kong director, producer, and screenwriter
b. 1912
German admiral
b. 1896
German agronomist and politician
b. 1932
Indian politician and statesman, Minister of External Affairs, 10th Chief Minister of Karnataka, 19th Governor of Maharashtra
b. 1915
German business executive
Historical facts, event summaries, and biographical lines above are adapted from Wikipedia under the Creative Commons Attribution-ShareAlike (CC BY-SA) license. DateLore adds curation, structure, and original editorial commentary. DateLore is not affiliated with the Wikimedia Foundation.
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