. The last major Swedish Viking expedition appears to have been the ill-fated expedition of Ingvar the Far-Travelled to Serkland, the region south-east of the Caspian Sea. Its members are commemorated on the Ingvar Runestones, none of which mentions any survivor. What happened to the crew is unknown, but it is believed that they died of sickness.
The Kingdom of Sweden
It is not known when and how the kingdom of Sweden was born, but the list of Swedish monarchs is drawn from the first kings known to have ruled both Svealand (Sweden) and Götaland (Gothia) as one province, beginning with Eric the Victorious. Sweden and Gothia were two separate nations long before that into antiquity. It is not known how long they existed, Beowulf described semi-legendary Swedish-Geatish wars in the 6th century.
During the early stages of the Scandinavian Viking Age, Ystad in Scania and Paviken on Gotland, in present-day Sweden, were flourishing trade centres. Remains of what is believed to have been a large market have been found in Ystad dating from 600–700 AD. In Paviken, an important centre of trade in the Baltic region during the 9th and 10th century, remains have been found of a large Viking Age harbour with shipbuilding yards and handicraft industries. Between 800 and 1000, trade brought an abundance of silver to Gotland, and according to some scholars, the Gotlanders of this era hoarded more silver than the rest of the population of Scandinavia combined.
St. Ansgar is usually credited for introducing Christianity in 829, but the new religion did not begin to fully replace paganism until the 12th century. During the 11th century, Christianity became the most prevalent religion, and from 1050 Sweden is counted as a Christian nation. The period between 1100 and 1400 was characterized by internal power struggles and competition among the Nordic kingdoms. Swedish kings began to expand the Swedish-controlled territory in Finland, creating
