isotherm of to not be classified as subarctic, but temperatures did go up sufficiently to be clear humid continental since. While precipitation usually is moderate, in August 2021, Gävle was hit by a Flash flood after recording of rainfall in one day. Considerable flooding occurred in multiple regions with entire neighborhoods flooded. Vehicles were submerged and landslides occurred as well. At least 10 heavy rain reports were reported. Economy Trade from the port of Gävle increased markedly during the 15th century when copper and iron began to be exported from the port. In order to ensure that all trade was via Stockholm, sailing to foreign ports from Gävle and a few other ports was forbidden. During the 16th century, Gävle was one of the most important port and merchant towns with many shipping companies and shipyards. In 1787 Gävle was awarded "free and unrestricted sailing rights" to and from foreign ports. This led to an increase in trade, which in turn led to an increase in buildings, industrial developments, trade and shipping. Today there are few shipping companies or shipyards left, but an important port remains. It has over 1000 ships calling per year and is among the top ten common ports in Sweden. Major companies BillerudKorsnäs (pulp and paper industry) Kraft General Foods Scandinavia (Gevalia coffee) Cale Industri (parking meters) Demography Culture Gävle has, considering its size, a large and well nourished cultural life, being a cradle for many musicians such as The Deer Tracks and The Sound of Arrows. The city applied to become the European Capital of Culture in 2014. Arts and museums The prison museum of Sweden, the county museum of Gävleborg, and the national railway museum are the three largest museums in the city. The prison museum is located near Gävle Castle and depicts the history of crime and punishment in Sweden. The county museum (located downtown) hosts an art collection spanning from the 1600s to present time and well as a section dedicated to cultural history. Finally, the Swedish Railway Museum (Rälsgatan 1), hosts a collection that began to accumulate in 1906 in Stockholm and which was moved to Gävle in 1970. Gävle has a theater dating back to the 1800s. It is still used for performances today, including classic theater, opera, variety and stand-up. There is also a concert hall in Gävle which was inaugurated in 1998. It is home to the 1912