Ukraine is a country in Eastern Europe, the second-largest on the continent after Russia. It shares borders with Russia to the east and northeast, Belarus to the north, Poland and Slovakia to the west, Hungary, Romania, and Moldova to the southwest, and the Black Sea and the Sea of Azov to the south and southeast. Kyiv is its capital and largest city, followed by Kharkiv, Odesa, and Dnipro. The official language is Ukrainian. Ukraine covers 603,628 km2 (233,062 sq mi) with an estimated population of 32.8 million in 2025.
In the ten years after the opening of the Trans-Siberian Railway in 1906, an additional 1.6 million Ukrainians emigrated to the east.
Following the Russian Revolution in 1917, the short-lived Ukrainian People's Republic was formed.
Fighting on Ukrainian soil persisted until late 1921, marking the end of Ukraine's involvement in World War I and subsequent conflicts.
In 1921, a famine further hit the eastern provinces of Ukraine, exacerbating the devastation caused by the Russian Civil War.
In July 1922, arrests and deportations of Ukrainian intellectuals (e.g. university professors) began in Soviet Ukraine and continued throughout the 1920s.
In 1922, the Bolsheviks established the Ukrainian Soviet Socialist Republic, which became a constituent republic of the Soviet Union.
In 1932, Stalin's decree "On the Reconstruction of Literary and Art Organisations" made socialist realism state policy in the Soviet Union, stifling artistic creativity.
After Piłsudski's death in 1935, the policy of offering local autonomy to Ukrainians was abandoned due to continued unrest and assassinations of Polish officials.
In September 1939, following the invasion of Poland, German and Soviet troops divided the territory, leading to Eastern Galicia and Volhynia becoming part of Ukraine.
Some western Ukrainians, who had only joined the Soviet Union in 1939, hailed the Germans as liberators.
In 1940, the Ukrainian SSR incorporated northern and southern districts of Bessarabia, Northern Bukovina, and the Hertsa region from Romania.
On June 22, 1941, German armies invaded the Soviet Union, initiating nearly four years of total war.
In 1942, the independent Ukrainian Insurgent Army (UPA) movement arose in Western Ukraine, supporting the goal of an independent Ukrainian state.
From mid-1943 until the end of the war, the UPA carried out massacres of ethnic Poles in the Volhynia and Eastern Galicia regions.
In 1944, half of the Pro-Soviet partisan guerrilla resistance units, which counted up to 500,000 troops were also Ukrainian.
In 1945, the Ukrainian SSR became one of the founding members of the United Nations (UN), part of a special agreement at the Yalta Conference.
A famine in 1946–1947, caused by drought and wartime destruction, killed at least tens of thousands of people in Ukraine.
A famine in 1946–1947, caused by drought and wartime destruction, killed at least tens of thousands of people in Ukraine.
In 1947, the territorial gains of the USSR, including those in the Ukrainian SSR, were internationally recognised by the Paris peace treaties.
By 1950, the republic had fully surpassed pre-war levels of industry and production.
As of 1 January 1953, Ukrainians were second only to Russians among adult "special deportees", comprising 20% of the total.
Following the death of Stalin in 1953, Nikita Khrushchev became the new leader of the USSR, who began the policies of de-stalinisation and the Khrushchev Thaw.
In 1964, Leonid Brezhnev became General Secretary of the Communist Party of the Soviet Union.
Leonid Brezhnev remained General Secretary of the Communist Party of the Soviet Union in 1982.
On 26 April 1986, a reactor in the Chernobyl Nuclear Power Plant exploded, resulting in the Chernobyl disaster, the worst nuclear reactor accident in history.
By 1988, the number of higher education institutions in Ukraine had increased to 146, accommodating over 850,000 students.
In 1991, Ukraine gained independence as the Soviet Union dissolved, declaring itself neutral.
Literary freedom grew alongside the decline and collapse of the USSR and the reestablishment of Ukrainian independence in 1991.
Since Ukraine's declaration of independence in 1991, the usage of "the Ukraine" has become politicised and is now rarer, and style guides advise against its use.
Sergey Bubka held the record in the Pole vault from 1993 to 2014.
In 1996, a new constitution was adopted in Ukraine as the country transitioned to a free market liberal democracy.
In 1997, the popularity of granting Russian official status in Ukraine reached its lowest point since polling began, influenced by Russian armed aggression.
In 2000, the museum of Pysanka was built in the city of Kolomyia.
The Orange Revolution of 2004 ushered in electoral and constitutional reforms in Ukraine.
In 2005, Ukraine initiated a reform to replace the eleven-year school program with a twelve-year system.
The Orange Revolution of 2005 ushered in electoral and constitutional reforms in Ukraine.
In 2006, the Ukraine national team made its debut in the FIFA World Cup, reaching the quarterfinals.
In 2007, the museum of Pysanka won a nomination as the monument of modern Ukraine, part of the Seven Wonders of Ukraine action.
Vasyl Lomachenko won an Olympic gold medal in 2008.
In 2011, Ukraine was granted the right to organise EuroBasket 2015.
Since 2012, the Ministry of Culture of Ukraine has formed the National Register of Elements of the Intangible Cultural Heritage of Ukraine.
Vasyl Lomachenko won an Olympic gold medal in 2012.
In 2013, the Ukraine national basketball team finished sixth in EuroBasket 2013 and qualified to FIBA World Cup for the first time in its history.
In 2014, mass demonstrations known as the Euromaidan led to a revolution, at the end of which Russia unilaterally occupied and annexed Ukraine's Crimean Peninsula, and pro-Russian unrest culminated in a war in Donbas with Russia and Russian-backed separatists.
Sergey Bubka held the record in the Pole vault from 1993 to 2014.
In 2011, Ukraine was granted the right to organise EuroBasket 2015.
In 2016, Protestants in Ukraine constituted 1.9% of the population.
By 2018, the Protestant community in Ukraine had grown to represent 2.2% of the population.
In 2018, Oleksandr Usyk became the undisputed cruiserweight champion.
In 2019, Christians represented 82% of the Ukrainian population, with a majority belonging to the Eastern Orthodox tradition. Roughly 58.3% of the Ukrainian Orthodox population were members of the Orthodox Church of Ukraine, and 25.4% were members of the Ukrainian Orthodox Church (Moscow Patriarchate).
In 2021, a survey by the Kyiv International Institute of Sociology (KIIS) revealed that 82% of Ukrainians identified as religious, with Western Ukraine showing the highest level of religiosity at 91%.
Between February 2022 and March 2023, UNESCO verified the damage to 247 sites in Ukraine including religious sites, buildings of artistic or historical interest, monuments and libraries.
As of 2022, 75% of the population of Ukraine use the internet, and social media is widely used by government and people.
In 2022, the Russian invasion of Ukraine began the current phase of the war.
Since the 2022 Russian invasion of Ukraine, the World Health Organization has documented over 2,254 attacks on healthcare in Ukraine.
Since January 2023, the historic centre of Odesa has been inscribed on the List of World Heritage in Danger.
Between February 2022 and March 2023, UNESCO verified the damage to 247 sites in Ukraine including religious sites, buildings of artistic or historical interest, monuments and libraries.
On 10 March 2024, creators of the documentary film 20 Days in Mariupol were awarded with the Oscar in the category "Best Documentary Feature Film", the first Oscar in Ukraine's history.
According to the October 2024 data of the World Health Organization Ukraine health needs assessment, 68% of Ukrainians reported a decline in their health compared to the pre-war period, with Ukrainian children's physical and mental health worsened.
As of 2024, Ukraine has the lowest nominal GDP per capita in Europe.
As of September 2025, the National Register of Elements of the Intangible Cultural Heritage of Ukraine consists of 115 items.
In 2025, Ukraine was ranked 66th in the Global Innovation Index.
In 2025, the estimated total population of Ukraine is 32.8 million.
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