The IV District, also known as Martti (Finnish; Martins in Swedish), is one of the central districts of Turku, Finland. It is located on the east side of the river Aura, between Tervahovinkatu in the west and Betaniankatu and Martinkatu in the east. The district is one of the smallest in Turku, and is centred on the Martinkirkko church, named after the reformer Martin Luther (Martti Luther in Finnish). Martti is also one of the most expensive areas to live in Turku.
The district is rather densely populated, and has a population of 4,357 (as of 2004) and an annual population growth rate of -0.46%. 7.16% of the district's population are under 15 years old, while 18.80% are over 65. The district's linguistic makeup is 90.22% Finnish, 8.40% Swedish, and 1.38% other.
Coordinates: 60°26′26″N 22°15′20″E / 60.44056°N 22.25556°E / 60.44056; 22.25556
Turku (Finnish pronunciation: [ˈturku]; Swedish: Åbo [ˈoːbʊ]) is a city on the southwest coast of Finland at the mouth of the Aura River, in the region of Southwest Finland. Turku, as a town, was settled during the 13th century and founded most likely at the end of the 13th century, making it the oldest city in Finland. It quickly became the most important city in Finland, a status it retained for hundreds of years. After Finland became part of the Russian Empire (1809) and the capital of the Grand Duchy of Finland was moved to Helsinki (1812), Turku continued to be the most populous city in Finland until the end of the 1840s, and it remains a regional capital and an important business and cultural center.
Because of its long history, it has been the site of many important events, and has extensively influenced Finnish history. Along with Tallinn, the capital city of Estonia, Turku was designated the European Capital of Culture for 2011. In 1996, it was declared the official Christmas City of Finland.
1496 Turku (1938 SA1) is a main-belt asteroid discovered on September 22, 1938, by Y. Vaisala at the Tuorla Observatory.