Helsinki ( HEL-sink-ee or (listen) hel-SINK-ee; Finnish: [helsiki] (listen); Swedish: Helsingfors, Finland Swedish: [helsifors] (listen); Latin: Helsingia) is the capital, primate, and most populous city of Finland. Located on the shore of the Gulf of Finland, it is the seat of the region of Uusimaa in southern Finland, and has a population of 658,864. The city's urban area has a population of 1,268,296, making it by far the most populous urban area in Finland as well as the country's most important center for politics, education, finance, culture, and research; while Tampere in the Pirkanmaa region, located 179 kilometres (111 mi) to the north from Helsinki, is the second largest urban area in Finland. Helsinki is located 80 kilometres (50 mi) north of Tallinn, Estonia, 400 km (250 mi) east of Stockholm, Sweden, and 300 km (190 mi) west of Saint Petersburg, Russia. It has close historical ties with these three cities.

Together with the cities of Espoo, Vantaa, and Kauniainen (and surrounding commuter towns, including the eastern neighboring municipality of Sipoo), Helsinki forms the Greater Helsinki metropolitan area, which has a population of over 1.5 million. Often considered to be Finland's only metropolis, it is the world's northernmost metro area with over one million people as well as the northernmost capital of an EU member state. After Copenhagen and Stockholm, Helsinki is the third largest municipality in the Nordic countries. Finnish and Swedish are both official languages. The city is served by the international Helsinki Airport, located in the neighboring city of Vantaa, with frequent service to many destinations in Europe and Asia.

Helsinki was the World Design Capital for 2012, the venue for the 1952 Summer Olympics, and the host of the 52nd Eurovision Song Contest in 2007.

Helsinki has one of the world's highest standards of urban living. In 2011, the British magazine Monocle ranked Helsinki the world's most liveable city in its liveable cities index. In the Economist Intelligence Unit's 2016 liveability survey, Helsinki was ranked ninth among 140 cities. In July 2021, the American magazine Time ranked Helsinki one of the greatest places in the world in 2021 as a city that "can grow into a sprouting cultural nest in the future," and which has already been known in the world as an environmental pioneer. An international Cities of Choice survey conducted in 2021 by the consulting firm Boston Consulting Group and the BCG Henderson Institute raised Helsinki the third best city in the world to live, with London and New York City ranking the first and the second. Also, together with Rovaniemi in the Lapland region, Helsinki is one of Finland's most significant tourist cities in terms of foreign tourism.

The Kingdom of Romania (Romanian: Regatul României) was a constitutional monarchy that existed in Romania from 13 March (O.S.) / 25 March 1881 with the crowning of prince Karl of Hohenzollern-Sigmaringen as King Carol I (thus beginning the Romanian royal family), until 1947 with the abdication of King Michael I of Romania and the Romanian parliament's proclamation of Romania as a socialist People's republic.

From 1859 to 1877, Romania evolved from a personal union of two vassal principalities (Moldavia and Wallachia) under a single prince to an autonomous principality with a Hohenzollern monarchy. The country gained its independence from the Ottoman Empire during the 1877–1878 Russo-Turkish War (known locally as the Romanian War of Independence), when it also received Northern Dobruja in exchange for the southern part of Bessarabia. The kingdom's territory during the reign of King Carol I, between 13 (O.S.) / 25 March 1881 and 27 September (O.S.) / 10 October 1914 is sometimes referred as the Romanian Old Kingdom, to distinguish it from "Greater Romania", which included the provinces that became part of the state after World War I (Bessarabia, Banat, Bukovina, and Transylvania).

With the exception of the southern halves of Bukovina and Transylvania, these territories were ceded to neighboring countries in 1940, under the pressure of Nazi Germany or the Soviet Union. Following the abolishment of the 1923 constitution by King Carol II in 1938, the Kingdom of Romania became a de facto absolute monarchy, only to become a military dictatorship under Ion Antonescu in 1940 after the forced abdication of King Carol II, with his successor, King Michael I being a figurehead with no effective political power. The country's name was changed to Legionary Romania.

The disastrous World War II campaign on the side of the Axis powers led to King Michael's Coup against Ion Antonescu in 1944, as a result of which the Kingdom of Romania became a constitutional monarchy again and switched sides to the Allies, recovering Northern Transylvania. The influence of the neighbouring Soviet Union and the policies followed by Communist-dominated coalition governments ultimately led to the abolition of the monarchy, with Romania becoming a Soviet satellite state as the People's Republic of Romania on the last day of 1947.