Northern Savo, while the dialect spoken in the Southern parts of Punkaharju resembles South-Eastern dialects in many ways. The difference between dialects in Savonlinna district has its roots in the colonization history. The area of greater Kerimäki (which consisted Enonkoski, Punkaharju and Savonranta) was settled by Karelian people till the 16th century, but from the 14th century the Savonian has started to settle to the Eastern side of Lake Pihlajavesi and the coasts of Puruvesi. The differences between natural and governmental borders goes together in many ways. In Enonkoski the dialect is more Savonian in the Northern side of Hanhivirta. The other reason to this is that the Northern villages of Enonkoski belonged to Heinävesi in the 19th century, while the Southern villages were part of Kerimäki. The Northern border of Puruvesi goes through Lake Puruvesi. So the old Karelian-based dialect features have kept in Punkaharju much better than in Kerimäki, which is located in the Northern side of Puruvesi. Eastern Savonian dialects or the dialects of North Karelia Eastern Savonian dialects or the dialects of North Karelia are spoken in North Karelia in the municipalities of Eno, Ilomantsi, Joensuu, Juuka, Kesälahti, Kiihtelysvaara (now part of Joensuu), Kitee, Kontiolahti, Korpiselkä (now part of Russia, little part of Tohmajärvi since 1946), Outokumpu, Liperi, Nurmes, Pielisjärvi (part of Lieksa since 1973), Polvijärvi, Pyhäselkä, Pälkjärvi (now part of Russia, little part of Tohmajärvi since 1946), Rautavaara, Ruskeala (now part of Russia), Soanlahti, Tohmajärvi, Tuupovaara (now part of Joensuu) and Valtimo. Dialects of Kainuu Kainuu dialects are spoken in Hyrynsalmi, Kajaani, Kuhmo, Kuusamo, Paltamo, Posio, Pudasjärvi, Puolanka, Ranua (Southern part), Ristijärvi, Sotkamo, Suomussalmi, Taivalkoski and Vaala. Dialects of Middle Finland Dialects of Middle Finland are spoken in Hankasalmi (Western part), Karstula, Kinnula, Kivijärvi, Konginkangas (part of Äänekoski since 1993), Konnevesi (Western part), Kyyjärvi, Laukaa, Multia, Pihtipudas, Pylkönmäki, Saarijärvi, Sumiainen, Uurainen, Viitasaari and Äänekoski. Dialects of Päijät-Häme Päijät-Häme Savonian dialects are spoken in Joutsa, Jyväskylä, Jämsä, Korpilahti, Koskenpää (part of Jämsänkoski since 1969), Kuhmoinen, Leivonmäki, Luhanka, Muurame, Pertunmaa (Western part), Petäjävesi, Sysmä and Toivakka. Middle dialects of Keuruu-Evijärvi Middle dialects of Keuruu-Evijärvi are spoken in Alajärvi, Evijärvi, Keuruu, Lappajärvi, Lehtimäki, Pihlajavesi, Soini, Vimpeli and Ähtäri. This sub-dialect area is wedge shaped in the middle of Ostrobothnia, which has its own dialects and also Swedish-speaking population. This is the influence of Savonian slash-and-burn farmers who colonized the lake section in Southern Ostrobothnia in the 17th century.