Swedish language
Swedish began as a dialect of Old Norse, which was a language that everyone in Scandinavia understood during the Viking Age. Around the 12th century Swedish began to slowly become different from the other dialects.  These dialects later became what we today call Norwegian, Icelandic, Faroese and Danish. Swedish is a Germanic language with some similarities to English because of the Vikings that invaded England in the 10th Century. It is even more similar to German and Dutch, partly because of the Hanseatic League of the Middle Ages, when Sweden traded very openly with Germany.