Kaunas (; ) is the second-largest city in Lithuania (after Vilnius), the fourth-largest city in the Baltic states, and an important centre of Lithuanian economic, academic, and cultural life. Kaunas was the largest city and the centre of Kaunas County in the Duchy of Trakai of the Grand Duchy of Lithuania and Trakai Palatinate since 1413. In the Russian Empire, it was the capital of the Kaunas Governorate from 1843 to 1915.

Between 1920 and 1939, when Vilnius was seized and became part of Poland, Kaunas served as the temporary capital of Lithuania. During the interwar period Kaunas was celebrated for its rich cultural and academic life, fashion, construction of countless Art Deco and Lithuanian National Revival architectural-style buildings as well as popular furniture, interior design of the time, and a widespread café culture. The city's interwar architecture is regarded as among the finest examples of European Art Deco and has received the European Heritage Label. This contributed to Kaunas being designated as the first city in Central and Eastern Europe as a UNESCO City of Design, and also to its becoming a World Heritage Site in 2023 as the only European city displaying large-scale urbanization during the interwar period and a range of modernist architecture.

Kaunas was selected as the European Capital of Culture for 2022, together with Esch-sur-Alzette and

The city is the capital of Kaunas County, and the seat of the Kaunas city municipality and the Kaunas District Municipality. It is also the seat of the Roman Catholic Archdiocese of Kaunas. Kaunas is located at the confluence of the two largest Lithuanian rivers, the Nemunas and the Neris, and is near the Kaunas Reservoir, the largest body of water in Lithuania.

As defined by Eurostat, the population of Kaunas functional urban area is estimated at 391,153 ( 2021),"Population on 1 January by age groups and sex - functional urban areas". Eurostat. Retrieved 15 June 2019. while according to statistics of Kaunas territorial health insurance fund there are 447,946 permanent inhabitants (as of 2022) in Kaunas and Kaunas district municipalities combined. In addition, the tertiary education institutions of Kaunas attract thousands of students annually.

Name Etymology

The city's name is of Lithuanian origin and most likely derives from a personal name, however the exact person is unknown and it is believed that he was the ruler of Kaunas Castle. The personal name Kaunas is derived from an adjective which means "who likes to fight". Other possible meaning of the name of the city of Kaunas is that it is derived from an old adjective which is not in use anymore and which meant "deep", "low", "located in the valley".

Before Lithuania regained independence, the city was generally known in English as Kovno, the traditional Slavicized form of its name. The Polish name is , and the names in Belarusian include ( ) and ( ).http://www.tnpa.by/#!/FileText/328852/231296 The Yiddish name is , and the names in German include and . On Carta marina from 1539, the city was named . The city and its elderates also have names in other languages (see Names of Kaunas in other languages and names of Kaunas elderates in other languages).

Folk history A 16th-century legend in the Bychowiec Chronicle claims that Kaunas was established by the Romans in ancient times. These Romans were supposedly led by a patrician named Palemon, who had three sons: Barcus, Kunas and Sperus. Palemon fled from Rome because he feared the mad Emperor Nero. Palemon, his sons and other relatives travelled to Lithuania. After Palemon's death, his sons divided his land. Kunas got the land where Kaunas now stands. He built a fortress near the confluence of the Nemunas and Neris rivers and the city that grew up there was named after him. A suburban region in the vicinity is named "Palemonas".

According to historian Teodor Narbutt, the Lithuanians previously worshiped the god Kaunis, whose statue was located in the Kaunas Old Town near the Neman River.

Coat of arms

In 1408 Vytautas the Great granted Kaunas the city rights and himself chose the coat of arms of Kaunas with aurochs.

On 30 June 1993, the historical coat of arms of Kaunas city was re-established by a special presidential decree. The coat of arms features a white aurochs with a golden cross between its horns, set against a deep red background. The aurochs was the original heraldic symbol of the city, established in 1400. The heraldic seal of Kaunas, introduced in the early 15th century during the reign of Grand Duke Vytautas, is the oldest city heraldic seal known in the territory of the Grand Duchy of Lithuania. The current emblem was the result of much study and discussion on the part of the Lithuanian Heraldry Commission, and realized by the artist Raimondas Miknevicius. An aurochs has replaced a wisent, which was depicted in the Soviet-era emblem that was used since 1969.

Blazon: Gules, an aurochs passant guardant argent ensigned with a cross Or between his horns.

Kaunas also has a greater coat of arms, which is mainly used for purposes of Kaunas city representation. The sailor, three golden balls, and Latin text "Diligite justitiam qui judicatis terram" (English: Cherish justice, you who judge the earth) in the greater coat of arms refers to Saint Nicholas, patron saint of merchants and seafarers, who was regarded as a heavenly guardian of Kaunas by Queen Bona Sforza.

History Early history According to the archeological excavations, the richest collections of ceramics and other artifacts found at the confluence of the Nemunas and the Neris rivers are from the second and first millennium BC. During that time, people settled in some territories of the present Kaunas: the confluence of the two longest rivers of Lithuania area, Eiguliai, Lampėdžiai, Linkuva, Kaniūkai, Marvelė, Pajiesys, Romainiai, Petrašiūnai, Sargėnai, and Veršvai sites.

Grand Duchy of Lithuania

A settlement was established on the site of what is now Kaunas Old Town, at the confluence of two large rivers, by at latest the 10th century AD and more settlements developed in the 11th century AD. Kaunas was first mentioned in written sources in 1361 and at the end of the 13th century the brick Kaunas Castle was constructed to defend the residents from attacks by the Teutonic Order. At the time only two brick castles stood near the Nemunas River (in Kaunas and Grodno), which was the main front line of fights between the Crusaders and Lithuanians. Consequently, Kaunas Castle had a strategic importance, as it prevented the Crusaders from intruding deeper into Lithuania and its capital, Vilnius.

In 1362, the castle was captured after a siege of several weeks and destroyed by the Teutonic Order. Lithuanian rulers Kęstutis and Grand Duke Algirdas arrived to help the castle's defenders, but the castle was already surrounded by the fortifications of the Crusaders, and they could only watch the collapse of the castle. Most of the 400 defenders of the castle were killed in action; commander Vaidotas of the Kaunas Castle garrison tried to break through with 36 men, but was taken prisoner. It was one of the largest and most important military victory of the Teutonic Knights in the 14th century against the Grand Duchy of Lithuania.

The Lithuanians constructed a new wooden castle on the island of Virgalė, which stood at the confluence of the Nemunas and Nevėžio rivers; however in 1363 the Crusaders burned the castle. The wooden castle was rebuilt, but in 1368 the Crusaders attacked once again, destroyed the castle and, according to the chronicles, killed 600 pagan defenders, while they themselves suffered only three casualties.

The Lithuanians attempted to rebuild the castle with masonry and higher, wider walls, four flanking towers and a moat, but before its completion the Crusaders attacked in the summer of 1369, expelled the Lithuanians from the island of Virgalė, and with their masonry built Gotteswerder Castle. Gotteswerder Castle was captured after a five-week siege by the Grand Ducal Lithuanian Army, led by Algirdas and Kęstutis, and two wooden castles were built close to it. Nevertheless, the fighting between the Crusaders and the Lithuanians for the area went on until the Lithuanians eventually took control in 1404; it was an important point during the 1409 Samogitian Rebellion and the 1410 war with the Crusaders.

Grand Duke Vytautas the Great funded Church of the Assumption of the Blessed Virgin Mary in Kaunas (the construction was completed in 1400) to show his gratitude to the Virgin Mary for saving him from almost drowning in the river, during the Battle of the Vorskla River, in 1399. Following the Battle of Grunwald in 1410, Kaunas Castle became a residence of the elder of Kaunas, and its military significance decreased.

In 1408, the town was granted Magdeburg rights by Vytautas the Great and in 1413 became the centre of Kaunas Powiat, in Trakai Voivodeship. Moreover, Vytautas ceded Kaunas the right to own the scales used for weighing the goods brought to the city or packed on the site, the wax processing, and woolen cloth-trimming facilities. The power of the self-governing Kaunas was shared by three interrelated major institutions: vaitas (the Mayor), the Magistrate (12 lay judges and 4 burgomasters), and the so-called Benchers' Court (12 persons). Kaunas began to gain prominence, since it was at the intersection of trade routes and a river port. At the time, Kaunas became an important port and centre of trade with Western Europe, thus rapidly growing. In 1441, Kaunas joined the Hanseatic League, and Hansa merchant office Kontor was opened – the only one in the Grand Duchy of Lithuania.

By the 16th century, Kaunas also had a public school and a hospital and was one of the most firmly established towns in the whole country. Furthermore, in the 16th century Grand Duchess Bona Sforza achieved that the Kaunas Eldership should become a property of the Jagiellonian dynasty; starting in 1533, she carried out the Volok Reform.

The late 16th and early 17th centuries saw the greatest period of economic growth in Kaunas, which throughout the city brought the construction of many brick masonry buildings. In the early 17th century, the city's prosperity led to the beginning of the construction of the Wall of Kaunas, which, however, was not completed, due to later wars and economic reasons. In 1665, the Russian army attacked the city several times, and in 1701 the city was occupied by the Swedish Army during the Great Northern War. Bubonic plague struck the area in 1657 and 1708, killing many residents. Fires destroyed parts of the city in 1731 and 1732.

In the first half of the 18th century, the northern wall and two towers of the Kaunas Castle collapsed, due to damage from river water; this led to the abandonment of the castle, and it collapsed into ruins. Subsequently, a jail was established in one part of the castle, in the middle of the 18th century. At the end of the 18th century, the castle was sometimes used to hold meetings of noble families of Kaunas Powiat.

Russian Empire

After the third and final partition of the Polish–Lithuanian state in 1795, the city was taken over by the Russian Empire and became a part of Vilna Governorate. During the French invasion of Russia in 1812, the Grand Army of Napoleon passed through Kaunas twice, devastating the city both times. A hill fort mound in Kaunas is named Napoleon's Hill.

To prevent possible easy access through the city and protect the western borders of Russia, the Kovno Fortress was built. It is still visible throughout the town.