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What happened in 1943?

41 events across 8 world regions, each with its sources.

Europe

  • German-Soviet War

    1941–1945Moscow

    On 22 June 1941, Germany and its Axis allies launched Operation Barbarossa, invading the Soviet Union, marking the start of the German-Soviet War. This war was a massive military confrontation between the European Axis powers and the Soviet Union and its allies during World War II, spanning Central, Eastern, Northern, and Southeastern Europe.

    SourcesWikipedia ↗

  • Battle of Kursk

    1943

    From 5 July to 23 August 1943, German and Soviet forces fought near Kursk in southwestern Russia. The battle ended in a Soviet victory.

    SourcesWikipedia ↗

  • Battle of the Atlantic

    1939–1945Liverpool — Western Approaches Command, Battle of the Atlantic

    The Battle of the Atlantic was the longest continuous military campaign in World War II, running from 1939 to the defeat of Nazi Germany in 1945. At its core was the Allied naval blockade of Germany and Germany's counter-blockade, with the campaign peaking from mid-1940 to the end of 1943.

    SourcesWikipedia ↗

  • Outbreak of World War II

    1939–1945Moscow — Eastern Front (largest theatre of WWII)

    In 1939, World War II erupted as a global conflict involving nearly all nations divided into two opposing alliances: the Allies and the Axis. Characterized by total war, it mobilized entire economies and industries, becoming the deadliest conflict in history and involving large-scale massacres, starvation, disease, and genocide.

    SourcesWikipedia ↗

  • The Holocaust

    1933–1945Auschwitz-Birkenau, German-occupied Poland

    During World War II, Nazi Germany and its collaborators systematically perpetrated genocide against the Jewish people, resulting in the murder of approximately two-thirds of Europe's Jewish population.

    SourcesWikipedia ↗

  • Signing of the Treaty on the Creation of the USSR

    1922–1991Moscow

    On December 30, 1922, the Treaty on the Creation of the USSR was signed at the Bolshoi Theatre in Moscow, officially establishing the Union of Soviet Socialist Republics. Plenipotentiary delegates from the Russian, Transcaucasian, Ukrainian, and Byelorussian Soviet republics signed the treaty, along with a declaration serving as its preamble. The treaty legally formalized the political union of the Soviet republics that had existed since 1919, creating a new federal government with centralized functions in Moscow. Legislative power was vested in the Congress of Soviets and the Central Executive Committee, while executive power lay with the Council of People's Commissars.

    SourcesWikipedia ↗

  • Battle of Stalingrad

    1942–1943

    From 17 July 1942 to 2 February 1943, Nazi Germany and its Axis allies fought the Soviet Union for control of Stalingrad in southern Russia. Marked by close-quarters urban combat and heavy civilian losses, it is considered one of the bloodiest and most lethal urban battles in history. The German 6th Army was destroyed, the 4th Panzer Army suffered severe losses, and Army Group B was routed; Germany's 1942 summer offensive ended, the strategic initiative on the Eastern Front shifted to the USSR, and the battle is widely seen as a turning point in Europe.

    SourcesWikipedia ↗

  • Siege of Leningrad

    1941–1944

    During World War II, the Axis blockaded the Soviet city of Leningrad. From 1941 to 1944, the city was besieged for 872 days. Germany and Finland took part in the encirclement, but the city never fell. The siege ended on January 27, 1944.

    SourcesWikipedia ↗

  • Third Battle of Kharkov

    1943

    The Third Battle of Kharkov took place from 19 February to 15 March 1943 on the Eastern Front of World War II. It involved a counteroffensive by Nazi Germany's Army Group South, codenamed the Donets Campaign, against the Soviet Red Army, resulting in the recapture of Kharkov and Belgorod and substantial Soviet losses.

    SourcesWikipedia ↗

  • Second Battle of Smolensk

    1943

    From August to October 1943, the Red Army launched the Second Battle of Smolensk, commanded by Yeremenko and Sokolovsky with the Kalinin and Western Fronts, aiming to recapture the Smolensk and Bryansk regions held by Germany since 1941. The offensive coincided with the Lower Dnieper Offensive and lasted two months.

    SourcesWikipedia ↗

  • Allied Invasion of Italy (Operation Avalanche)

    1943

    In September 1943, the Allied 15th Army Group under General Harold Alexander invaded mainland Italy. The main landing was at Salerno, code-named Operation Avalanche, with supporting operations in Calabria and Taranto.

    SourcesWikipedia ↗

  • Battle of Prokhorovka

    1943

    The Battle of Prokhorovka took place on 12 July 1943 near Prokhorovka, southeast of Kursk, as part of the Battle of Kursk. The Soviet 5th Guards Tank Army engaged the German II SS-Panzer Corps in what is considered one of the largest tank battles in history.

    SourcesWikipedia ↗

  • Operation Iskra

    1943

    In January 1943, the Red Army launched Operation Iskra, aiming to break the Wehrmacht's prolonged siege of Leningrad. The operation formed part of the wider Soviet winter counteroffensive of 1942–1943 and was planned shortly after the failure of the Sinyavino Offensive. The German defeat at Stalingrad had weakened their eastern front, creating favorable conditions for the offensive.

    SourcesWikipedia ↗

  • Battles of Rzhev

    1942–1943Rzhev

    The Battles of Rzhev were a series of offensives and defensive operations around the Rzhev salient on the Eastern Front of World War II, lasting from January 1942 to March 1943. The Red Army's Western and Kalinin Fronts mounted repeated attacks against the German Army Group Centre, resulting in heavy losses on both sides. Due to the immense sacrifices of the Red Army, the campaign became known as the 'Rzhev Meat Grinder' among veterans and historians.

    SourcesWikipedia ↗

  • Battle of Kiev (1943)

    1943

    From October to December 1943, the Battle of Kiev was fought as part of the Soviet Battle of the Dnieper offensive in Ukraine, aiming to liberate Kiev and secure bridgeheads on the right bank of the Dnieper River. The Soviet 1st Ukrainian Front under Vatutin and Konev attacked Army Group South led by Manstein, with the German 4th Panzer Army under Hoth conducting a defensive counterattack. The battle involved three Soviet strategic operations and one German counterattack, ending without a complete Soviet success.

    SourcesWikipedia ↗

  • Outbreak of the Continuation War

    1941–1944Helsinki

    On 25 June 1941, Finland declared war on the Soviet Union, initiating the Continuation War. The conflict was seen as a continuation of the Winter War, with Finland aiming to regain lost territories. During the war, Finland was in de facto co-belligerence with Nazi Germany, which provided critical material and military support. The United Kingdom declared war on Finland in December 1941 but did not actively participate. The war ended on 19 September 1944 with the Moscow Armistice.

    SourcesWikipedia ↗

  • Albanian Resistance in World War II

    1939–1944Tirana

    In April 1939, Italy invaded Albania, beginning its World War II. Fascist Italy set up a puppet state, and Communist groups started a resistance, initially independent, uniting in early 1942 against first Italian then German occupation, leading to the country's liberation in 1944.

    SourcesWikipedia ↗

  • Signing of the Moscow Declarations

    1943Moscow

    On October 30, 1943, the foreign secretaries of the US, UK, USSR, and China signed four declarations during the Moscow Conference, covering general security, Italy, Austria, and atrocities, laying groundwork for the post-war order.

    SourcesWikipedia ↗

  • Armistice of Cassibile signed between Italy and the Allies

    1943

    On 3 September 1943, the Kingdom of Italy and the Allies secretly signed the Armistice of Cassibile at Cassibile in Sicily, marking Italy's withdrawal from the Axis Powers in World War II. The armistice was signed by Italian Prime Minister Marshal Pietro Badoglio and Allied representatives, and approved by King Victor Emmanuel III. This followed the ouster of Mussolini and the Allied invasion of the Italian mainland. The armistice was announced to the public on 8 September.

    SourcesWikipedia ↗

  • Battle of the Caucasus (1942–1943)

    1942–1943Caucasus

    The Battle of the Caucasus was a series of Axis and Soviet military operations for control of the Caucasus region during World War II. In July 1942, German forces captured Rostov-on-Don and advanced toward the Caucasus oil fields, reaching their furthest point at Ordzhonikidze. That winter, Soviet counter-offensives, partly due to the Stalingrad campaign, forced an Axis withdrawal, and by autumn 1943, Axis forces were cleared from the Taman Peninsula.

    SourcesWikipedia ↗

Oceania

  • Guadalcanal campaign

    1942–1943

    The Guadalcanal campaign, fought from 7 August 1942 to 9 February 1943, was a pivotal Pacific War battle. As the first major Allied land offensive against Japan, it aimed to secure supply routes between the US, Australia, and New Zealand, marking a turning point in the Allied strategic offensive.

    SourcesWikipedia ↗

  • Battle of Tarawa

    1943

    The Battle of Tarawa, fought from 20 to 23 November 1943 on Tarawa Atoll in the Gilbert Islands, was the first U.S. amphibious offensive in the Central Pacific. The battle resulted in an American victory, securing the heavily defended Betio Island and paving the way for the invasion of the Marshall Islands. The cost was high: nearly 6,400 Japanese, Koreans, and Americans died, primarily on the small island of Betio.

    SourcesWikipedia ↗

  • Battle of the Bismarck Sea

    1943

    On 2–4 March 1943, Allied aircraft attacked a Japanese troop convoy bound for Lae, New Guinea, in the Bismarck Sea. The U.S. Fifth Air Force and Royal Australian Air Force destroyed most of the task force, inflicting heavy troop losses. The battle demonstrated Allied air superiority over maritime supply lines in the South West Pacific theatre.

    SourcesWikipedia ↗

  • Gilbert and Marshall Islands campaign

    1943–1944

    The Gilbert and Marshall Islands campaign was a series of amphibious operations by the United States against Japan in the Pacific War, lasting from November 1943 to February 1944. The campaign aimed to capture airfields and naval bases in the Gilbert and Marshall Islands to support future Allied advances across the Central Pacific. It was preceded by a raid on Makin Island in August 1942 that provided vital intelligence. Major battles included Tarawa and Makin, leading to the seizure of Japanese bases at Kwajalein and Eniwetok atolls.

    SourcesWikipedia ↗

  • New Guinea Campaign

    1942–1945New Guinea

    The New Guinea campaign was a key part of the Pacific War, lasting from early 1942 until the war's end in August 1945. In early 1942, Japanese forces invaded New Guinea, seizing the Australian-administered Territory of New Guinea, Territory of Papua, and part of Dutch New Guinea. From late 1942, Allied forces counterattacked and gradually retook Papua, New Guinea, and the Dutch colony.

    SourcesWikipedia ↗

  • Solomon Islands Campaign

    1942–1945Honiara

    The Solomon Islands campaign was a major campaign of the Pacific War during World War II. It began in early 1942 with Japan seizing areas in the British Solomon Islands and Bougainville, and subsequently constructing naval and air bases there. Japan's goals were to protect its offensive in New Guinea, provide a security barrier for the base at Rabaul, and establish positions to interdict supply lines between the U.S., Australia, and New Zealand.

    SourcesWikipedia ↗

North Africa

  • Tunisia campaign

    1942–1943

    The Tunisia campaign was the decisive phase of the North African campaign during World War II, lasting from 17 November 1942 to 13 May 1943. Allied forces, including British Imperial, American, and French corps, fought against German and Italian forces. Despite early Axis successes, Allied numerical superiority and supply interdiction led to a decisive Axis defeat. Over 230,000 German and Italian troops were taken prisoner, including most of the Afrika Korps, ending the war in North Africa.

    SourcesWikipedia ↗

  • Battle of Kasserine Pass

    1943

    The Battle of Kasserine Pass was a series of engagements during the Tunisian campaign of World War II in February 1943. It revealed deficiencies in American training and leadership, leading to significant Allied command changes.

    SourcesWikipedia ↗

  • Western Desert campaign

    1940–1943

    The Western Desert campaign was the initial stage of the North African campaign of World War II, lasting from June 1940 to February 1943. Fought primarily in the deserts of Egypt and Libya, it began with Italian colonial forces facing the British Eighth Army, later joined by the German Afrika Korps. The campaign was heavily influenced by supply and transport issues, with Allied interdiction of Axis convoys being crucial. The British 'Operation Compass' in December 1940 destroyed the Italian 10th Army, and after back-and-forth fighting, it paved the way for the Allied control of North Africa in 1943.

    SourcesWikipedia ↗

  • North African campaign

    1940–1943Tripoli

    The North African campaign was a series of battles fought between the Allies and the Axis powers in North Africa from 1940 to 1943 during World War II, involving operations in the Libyan and Egyptian deserts, as well as Morocco, Algeria, and Tunisia.

    SourcesWikipedia ↗

Central Asian steppe

  • Aleutian Islands Campaign

    1942–1943

    The Aleutian Islands Campaign was a series of battles fought from June 1942 to August 1943 on the Aleutian Islands of Alaska during the Pacific War of World War II. Japanese forces occupied Attu and Kiska in June 1942 to prevent a potential US attack across the North Pacific, while the US feared the islands could be used as bases for air raids on the West Coast. Due to the remote location and harsh weather, it took over a year for US forces to retake the islands in 1943. It was the only World War II military campaign fought on North American soil.

    SourcesWikipedia ↗

  • Battle of Attu

    1943

    The Battle of Attu took place from 11 to 30 May 1943 on Attu Island in the Aleutians, marking the only land battle on US territory during World War II. US forces, with Canadian reconnaissance and fighter-bomber support, attacked Japanese positions. The battle ended in brutal hand-to-hand combat after a final banzai charge, resulting in the near-total annihilation of the Japanese defenders. It was notable for being a rare snowy engagement in the Pacific theater.

    SourcesWikipedia ↗

  • Operation Cottage

    1943

    Operation Cottage was the final phase of the Aleutian Islands campaign in August 1943, an Allied attempt to recapture Kiska Island from Japanese forces. Due to bad weather and intelligence failures, the Japanese had secretly evacuated the island two weeks earlier, and the landings were unopposed. Nevertheless, Allied forces suffered over 500 casualties from mines, friendly fire, and vehicle accidents.

    SourcesWikipedia ↗

  • Battle of the Komandorski Islands

    1943

    On 27 March 1943, American and Japanese naval forces fought a rare daylight surface engagement south of the Komandorski Islands in the North Pacific. The Japanese were escorting a convoy, while the Americans patrolled west of the Aleutians. No air or submarine support was involved. The outnumbered American force escaped heavier damage after the Japanese chose to withdraw. The battle halted Japanese surface resupply of their occupied Aleutian islands.

    SourcesWikipedia ↗

North America

  • Founding of Los Alamos National Laboratory

    1943

    In 1943, the Los Alamos National Laboratory was established in the United States during the Manhattan Project, tasked with nuclear weapons design. Initially managed by the University of California, its first director was J. Robert Oppenheimer, overseeing the development and construction of the first atomic bomb.

    SourcesWikipedia ↗

  • Completion of the Jefferson Memorial

    1943

    The Jefferson Memorial was completed in 1943 in Washington, D.C., as a national memorial to Thomas Jefferson. Featuring a neoclassical design, it displays inscriptions of his writings, honoring his role as the principal author of the Declaration of Independence and the third U.S. president.

    SourcesWikipedia ↗

  • Launch of USS Wisconsin

    1943

    In 1943, the U.S. Navy launched USS Wisconsin (BB-64), an Iowa-class battleship. The ship later served in the Pacific Theater during World War II and underwent several modernizations and reactivations post-war.

    SourcesWikipedia ↗

Central & South America

  • Design of the Pampulha Modern Ensemble

    1943World Heritage

    The Pampulha Modern Ensemble is an urban project in Belo Horizonte, Brazil, designed around the artificial Lake Pampulha. It includes a casino, a ballroom, the Golf Yacht Club, and the Church of Saint Francis of Assisi. The buildings were designed by architect Oscar Niemeyer, in collaboration with landscape architect Roberto Burle Marx and other Modernist artists.

    SourcesUNESCO World Heritage listingWikipedia ↗

  • Completion of the Church of Saint Francis of Assisi in Pampulha

    1943World Heritage

    The Church of Saint Francis of Assisi, located in the Pampulha district of Belo Horizonte, Brazil, was completed around the mid-20th century. Designed by architect Oscar Niemeyer in an organic modern style, it is the first listed modern architectural monument in Brazil. The interior features a mural by Candido Portinari, and the exterior landscaping is by Roberto Burle Marx, making it one of the city's most iconic landmarks.

    SourcesWikipedia ↗

East Asia

  • Second Sino-Japanese War begins

    1937–1945China

    In 1937, full-scale war broke out between the Republic of China and the Empire of Japan, known as the Second Sino-Japanese War. The war was primarily fought in China, also extending into neighboring areas such as northern Burma. It was the largest Asian war in the 20th century and is often regarded as the beginning of World War II in Asia.

    SourcesWikipedia ↗

South Asia

  • Burma Campaign Begins

    1942–1945

    In early 1942, Japanese forces invaded British Burma, opening the Burma Campaign within the South-East Asian theatre of World War II. Initial Allied setbacks led to the establishment of puppet regimes in conquered areas and Thai annexations. Subsequent Allied offensives failed until forces peaked in 1944, enabling the recapture of Burma in 1945.

    SourcesWikipedia ↗

Around 1943

These are known only to the century, not to the year. They are listed separately so a rough date is never mistaken for an exact one.

  • Emergence of the Green Revolution

    c. 19401969Ludhiana, Punjab, India

  • Establishment of Women's Suffrage Worldwide

    c. 18931979Wellington, New Zealand

  • Establishment of Tubbataha Reefs Natural Park

    c. 19012000

  • Construction of Grimeton Longwave Radio Station

    c. 19012000

  • Construction of the Trans-Iranian Railway begins

    c. 19012000

  • Construction of the 20th-Century Architecture of Frank Lloyd Wright Begins

    c. 19012000

  • Construction of the Historic Monuments of Dengfeng in 'The Centre of Heaven and Earth'

    c. 19012000

  • Establishment of the Ancient Building Complex in the Wudang Mountains

    c. 19012000