Poriball is a cityball of 
Finlandball.
History
City of Pori was established on March 8, 1558 by Duke John of Finland who was later known as John III of Sweden. It was a successor to the medieval towns of Teljä (Kokemäki) and Ulvila. Sailing the Kokemäki river had become more and more difficult since the 14th century due to the post-glacial rebound. The importance of Kokemäki and Ulvila began to decline as the ships could no longer navigate the river. In the 16th century the situation had become so bad that Duke John decided to establish a new harbour and market town closer to the sea.
At the beginning Pori had around 300 involuntary residents. However, they soon recognized the advantages of their new location, which offered opportunities for profitable trading, among other things. Ship building has been important since the beginning of history of Pori. Shipyard started by the river in 1572 and it worked until the early 20th century. The biggest ship probably ever built in Pori was "Porin Kraveli," completed in 1583.
During the Greater Wrath of 1713, Pori was occupied by 
Russian troops. Eight Russian regiments spent four months in town from September 1713 to January 1714 vandalizing and demolishing the city. Some of the wealthiest residents vanished, they were probably imprisoned and taken to Russia. Wind mills and storage houses were burnt. Most of the oxen and horses and more than 400 boats were lost. The Russian invasion of Finland continued another seven years. It meant great financial loss for Pori as the foreign trade was completely finished. After the Greater Wrath, Pori lost its staple rights and the city went into deep depression. A new "golden age" for Pori started in 1765 as the city got back the staple rights for foreign trade.
As the Crimean War broke out in 1853, Pori was attacked by 
French Navy and 
British Navy in 1855 during the Åland War. The French frigate D'Assos made the first attempt on July and managed to catch one ship outside the Isokari island before they sailed further north. Another attack was made by the British fleet on 9 August. Mayor Klaus Wahlberg negotiated a deal with the enemy and the city was saved. Two sailing ships and 17 smaller boats along with some other properties were given to the British. The activities of the people of Pori were considered shameful and according to some information, Lieutenant General Alexander von Wendt would have later demoted the officer who had retreated from Luotsinmäki to sergeant during a review held at the Pori market square.
As most of its houses were made of wood, Pori has had its share of fires. The town has burned down and been rebuilt nine times. The city was first destroyed by fire in 1571 and the last major fire was in 1852. More than 75 per cent of the city was destroyed in 1852 and most of the residents became homeless. Only a few buildings, such as the Town Hall, were saved. The Great Fire of 1852 was one of the worst disasters in Finland so far. The new city plan and the shape of the present old town was designed by Swedish architect C. T. von Chiewitz. The newly completed buildings, such as the Pori Theatre and Hotel Otava are historically and culturally important. Four esplanades, which are wider than the other streets, divided the new city center in four parts.
During the 1918 Finnish Civil War, Pori was a part of the 
Finnish Socialist Workers' Republicball. The city was not on the direct war zone but some terror was made by both sides. The best known incident was the execution of 11 Whites at the schoolyard of Pori Lyceum.
During World War II, Pori was bombed four times by the 
Soviet Airforce in 1939–1940. The worst bombing occurred on 2 February 1940 as 21 people were killed. Most of the bombs were aimed to the harbour area instead of the city itself. From 1942 to 1944 Pori Airport served as an air depot for the Jagdgeschwader 5 of 
German Luftwaffe. Pori air depot was known as "Feldluftpark Pori" and it was one of the major German air depots in Northern Europe. In September 1944, Germans left the airport and destroyed many of their facilities with explosives. One German-built hangar is still used today. Total of 319 Soviet Red Army prisoners of war died in Pori as they were used as a forced labor by the Germans. Soviet soldiers are buried at Vähärauma district in the western part of the city.
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