Geography and urban development of Dresden temperatures are almost the same as those in cities in southwest Germany; on average 10.2°C per year. In hot summers, Dresden is between the hot Lusatia and the milder Ore Mountains. Both regions are characterised by strong winters: temperatures of −20°C are not impossible in Dresden. The driest months are February and March, with precipitation of 40 mm. Spring months have often been arid in the last couple of years (with less than 10 mm of precipitation). The most precipitation falls in July and August, at 60 mm per month. Due to its location on the banks of the Elbe
History of Hamburg contracts with Lübeck in 1241 marks the origin and core of the powerful Hanseatic League of trading cities. The first contract stated that both cities would defend their freedom and their privileges together. The second contract stated that the road between the two cities will be secured against bandits and that deported émigrés would not find shelter in the other city. In 1264 the East-west route for commerce was cobbled in Hamburg. It was the third cobbled road in northern Europe and called "Steinstraße", which is still the name of a street in Hamburg. On 8 November 1266 a contract