Czechoslovakia
Czechoslovakia's Ninth-of-May Constitution comes into effect.
In context
- When
- Sunday, May 9 194878 years ago
- Category
- Historical eventA dated happening — a battle, treaty, launch, discovery, disaster or decision — recorded on this calendar day.
- Era
- 20th century · 1940s
- Recorded from
- Wikipedia “On this day” feed
At a glance
Dates: From 1948.
What happened
Czechoslovakia was a country in Central Europe. The country was bordered by Austria and Hungary to the south, Germany to the west and northwest, Poland to the northeast, and Ukraine to the southeast. Czechoslovakia had a hilly and mostly mountainous landscape that covered an area of 127,906 square kilometers (49,385 sq mi) with a mostly temperate continental and oceanic climate. The capital and largest city was Prague; other major cities and urban areas include Brno, Ostrava, Plzeň, Liberec, Bratislava and Košice.
May 9 through the years
Other entries on the same calendar day, in order.
- 1948Czechoslovakia
- 2001Accra Sports Stadium
- 2001Ghana
- 2002Siege of the Church of the Nativity
- 2005Pope Benedict XVI
- 2012Yakovlev SJ-100
- 2018Barisan Nasional
- 2020COVID-19 recession
- 2022Russo-Ukrainian war
- 20232023 Pakistani protests
- 2023May 9 riots
Also in 1948
- September 12People's Liberation ArmyThe People's Liberation Army launched the Liaoshen campaign, the first of the three major military campaigns during the late stage of the…
- September 18Australia national cricket teamThe Australian cricket team's Invincibles tour of England concluded; they had played 34 matches, including five Tests, without defeat.
- June 17United Air Lines Flight 624United Air Lines Flight 624, a Douglas DC-6, crashes near Mount Carmel, Pennsylvania, killing all 43 people on board.
- July 8United States Air ForceThe United States Air Force accepts its first female recruits into a program called the Women's Air Force (WAF).
- December 14Thomas T. Goldsmith Jr.American physicists Thomas T. Goldsmith Jr. and Estle Ray Mann were awarded a patent for their cathode-ray tube amusement device, the fir…
- December 22Sjafruddin PrawiranegaraChaired by Sjafruddin Prawiranegara, the Emergency Government of the Republic of Indonesia was established to counter Dutch attempts to r…
- December 9United Nations General AssemblyThe United Nations General Assembly adopted the Genocide Convention, which defines genocide in legal terms and obligates its signatories…
- July 17Olympia, GreeceIn Olympia, Greece, the Summer Olympics torch relay, nicknamed the "relay of peace", began.
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
“Czechoslovakia”, What's On This Date, https://whatsonthisdate.com/app/event/czechoslovakia-1948-may-9, accessed October 24, 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 Czechoslovakia happen?
May 9 1948 — 78 years ago, on a Sunday.
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.
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