1947 (MCMXLVII) was a year that began on a Wednesday according to the Gregorian calendar.
January 3 – The two-year economic construction plan (the so-called two-year plan) was launched.
March 1 - The Directorate of Fortification Works was restored.
April 22 - Miroslav Zikmund and Jiří Hanzelka started their trip to Africa and South America with the Tatra T 87.
July 7 – The Pankrác Bus Station was put into operation in Prague.
July 11 – Act No. 149/1947 Coll. was adopted. on national security, which, among other things, established the State Security component.
July 13 – In the largest Czech tram accident to date, 30 people died and 76 were injured in Ústí nad Labem.
August 5 – 19 people died in a railway accident in Sekule, Slovakia.
April–October – Extreme drought caused crop failure and food supply difficulties. The Soviet Union supplied Czechoslovakia with 600,000 tons of grain.
November 16 – Štěpán Trochta was appointed bishop of Litoměřice and Josef Hlouch bishop of České Budějovice.
The KSČ enforced the liquidation of part of the Democratic Party
the crossing of the people of Bandera through Czechoslovakia, fighting in Slovakia
January 19 – The Democratic Bloc, led by the communist Polish Workers' Party, wins the Polish parliamentary elections with 80.1% of the vote.
February 5 – Bolesław Bierut became the President of Poland.
February 23 – The International Organization for Standardization (ISO) is founded.
February 25 – The Prussian State officially ceased to exist by the decision of the Allied Control Commission.
March 1 – The International Monetary Fund begins financial operations.
March 12 – US President Harry S. Truman announced the Truman Doctrine as economic aid to Greece and Turkey.
April 1 – King Paul I ascended the Greek throne and ruled for the next 17 years.
April 20 – After 35 years of reign, Danish King Christian X died and his son Frederik IX ascended the throne.
May 4 – The Jewish Irgun movement in British Mandatory Palestine attacks the Akko prison and frees 27 prisoners.
May 31 – Hungarian Prime Minister Ferenc Nagy resigns after the Communists kidnap his son.
September 18 - The Central Intelligence Service (CIA) was established in the USA.
June 5 - US Secretary of State George Catlett Marshall presented a plan for economic aid to post-war Europe, which was adopted by Congress a year later as the Marshall Plan.
July 11 – The ship Exodus set sail from the French port of Sète with 4,500 Jewish refugees bound for British Palestine. They drew attention to efforts to build the state of Israel.
August 15 – India gains independence from Great Britain.
October 11 - Representatives of 22 countries, including Czechoslovakia, signed the World Meteorological Organization convention in Washington.
October 14 - American military pilot Chuck Yeager breaks the speed of sound in a Bell X-1 airplane.
October 22 - The first war in Kashmir between India and Pakistan in more than two months begins.
October 30 – The General Agreement on Tariffs and Trade (GATT) was signed.
November 20 – Britain's Princess Elizabeth marries Lieutenant Philip Mountbatten, who became the Duke of Edinburgh, at Westminster Abbey in London.
November 29 - The UN General Assembly adopts a plan to partition Palestine between Jews and Arabs.
December 30 – King Michael I of Romania abdicated and the People's Republic of Romania was proclaimed.
for literature: André Gide France
for medicine: Carl Ferdinand Cori, Gerty Coriová, Bernardo Houssay - for the discovery of the function of the hormones of the anterior lobe of the pituitary gland in the metabolism of sugars
for physics: Edward Victor Appleton – for research into the physics of the upper layers of the atmosphere, especially for the discovery of the so-called Appleton layer
for Chemistry: Robert Robinson – for his research on plant products, particularly alkaloids
for peace: Council of the Society