UK story
England and Portugal formally ratify their alliance with the signing of the Treaty of Windsor, making it the oldest diplomatic alliance in the world which is still in force.
131 things happened on 9 May, from AD 328 to 2024. UK stories come first, then the rest of the world.
UK history first: stories from England, Scotland, Wales and Northern Ireland.
UK story
England and Portugal formally ratify their alliance with the signing of the Treaty of Windsor, making it the oldest diplomatic alliance in the world which is still in force.
UK story
Scottish Royalist forces under Lord Montrose defeat Covenanter forces under John Urry.
UK story
The figure who later became Mr. Punch makes his first recorded appearance in England.
UK story
The inaugural exhibition of the Society of Artists of Great Britain opened at Spring Gardens in London.
UK story
World War I: British forces launched the Battle of Aubers, an offensive on the Western Front, as part of the larger Second Battle of Artois.
UK story
First World War: Germany repelled Britain's second attempt to blockade the Belgian port of Ostend.
UK story
World War II: The German submarine U-110 is captured by the Royal Navy. On board is the latest Enigma machine which Allied cryptographers later use to break coded German messages.
Athanasius is elected Patriarch of Alexandria.
Lombard Revolt: Lombard forces led by Melus revolt in Bari against the Byzantine Catepanate of Italy.
Nephon, Bishop of Cyzicus, is consecrated as Patriarch of Constantinople.
Christopher Columbus sets off from Cádiz for his fourth voyage.
Hernando de Alarcón sets sail on an expedition to the Gulf of California.
Second Schleswig War: The Battle of Heligoland (depicted), the last naval engagement fought by squadrons of wooden ships, took place between the Danish and Austro-Prussian fleets.
American Civil War: Nathan Bedford Forrest surrenders his forces at Gainesville, Alabama.
Mihail Kogălniceanu reads, in the Chamber of Deputies, the Declaration of Independence of Romania. The date will become recognised as the Independence Day of Romania.
Australia opens its first national parliament in Melbourne.
Polish–Soviet War: The Polish army under General Edward Rydz-Śmigły celebrates its capture of Kiev with a victory parade on Khreshchatyk.
Admiral Richard E. Byrd and Floyd Bennett claim to have flown over the North Pole (later discovery of Byrd's diary appears to cast some doubt on the claim).
The Old Parliament House, Canberra, Australia, officially opens.
Italy formally annexes Ethiopia after taking the capital Addis Ababa on May 5.
World War II: The Japanese Take Ichi convoy arrived at Halmahera in the Dutch East Indies after losing many ships and thousands of troops to Allied attacks while attempting to carry two divisions of troops from China to New Guinea.
King Victor Emmanuel III of Italy abdicates and is succeeded by Umberto II.
Czechoslovakia's Ninth-of-May Constitution comes into effect.
Rainier III became Prince of Monaco, beginning a 56-year reign, which would make him one of the longest ruling monarchs of the 20th century.
Robert Schuman presents the "Schuman Declaration", considered by some to be the beginning of the creation of what is now the European Union.
Cold War: West Germany joins NATO.
In a speech to U.S. broadcasters, Newton Minow, the chairman of the Federal Communications Commission, described commercial television programming as "a vast wasteland".
About 200 students at Bucks County Community College held a protest after the college canceled a planned speech by gay rights activist Dick Leitsch.
Carlos Lamarca leads the first urban guerrilla action against the military dictatorship of Brazil in São Paulo, by robbing two banks.
New Parliament House, Canberra officially opens.
Armenian forces capture Shusha, marking a major turning point in the First Nagorno-Karabakh War.
Barisan Nasional, the coalition that had governed Malaysia since the country's independence in 1957, suffer a historic defeat in the 2018 Malaysian general election.
The COVID-19 recession causes the U.S. unemployment rate to hit 14.9 percent, its worst rate since the Great Depression.
Every answer is somewhere on this page. Have a go, then check!
In which year did this happen: “First World War: Germany repelled Britain's second attempt to blockade the”?
B: 1918. 1918 — that’s 108 years ago. Find it on the page
In which year did this happen: “The inaugural exhibition of the Society of Artists of Great Britain opened at”?
B: 1761. 1761 — that’s 265 years ago. Find it on the page
Which of these happened first?
C: The inaugural exhibition of the Society of Artists of Great Britain opened at. 1915: World War I: British forces launched the Battle of Aubers, an offensive on the · 1918: First World War: Germany repelled Britain's second attempt to blockade the · 1761: The inaugural exhibition of the Society of Artists of Great Britain opened at Find it on the page
“World War I: British forces launched the Battle of Aubers, an offensive on the” happened in 1915. How many years ago was that?
B: 111 years. 2026 − 1915 = 111. Find it on the page
Famous people whose birthday is 9 May.
Well-known people who died on 9 May.
Festivals, holidays and saints’ days celebrated on 9 May somewhere in the world.
Content note: these entries mention things like war, violence, deaths, disasters or crime. They are part of history, but they can be upsetting. Grown-ups and teachers: you may want to read them first. They come straight from Wikipedia and have not been rewritten for children.
Stories with a heading have been written for young readers by A Day in the Past, using the linked articles as sources. Other entries show text from Wikipedia’s “May 9” page and its “On this day” feed, written by Wikipedia contributors and shared under the Creative Commons Attribution-ShareAlike 4.0 licence. Each “Read more” link goes to the article an entry is based on. Photos are credited under each picture. Spotted a mistake? Please tell us.