There are so many similar words and phrases in these languages which show that the Ancient Nordic Scandinavians, and later the Vikings, established trade routes and permanent posts far longer than indicated by surviving texts and rune stone evidence. Scientific evidence and artifacts support the conclusion that much interbreeding and cultural exchanges existed between Native Americans and Vikings, and other Asian forefathers. The linguistic evidence of hundreds of years of intermarriage and assimilation of Nordic peoples with native populations throughout the world can be further corroborated further advanced DNA studies, cultural, linguistic, Icelandic studies, and other historical evidence.Linguistic and DNA research now supports much of Sturlesson's descriptions in the Heimskringla. Migration paths of ancient Scandinavians can be revealed by researching concentrations of DNA as they travelled over centuries to Europe and beyond.Thor Heyerdahl has challenged historians and scientists to go beyond the "dogmatic medieval view of history that puts Europe in the center of exploration, discovery and settlement of the rest of the world." His belief that "Europe arrived later in the global scheme of things, and that Azerbaijan may well be one of the very first centers of migration", should be researched by future ancient history students, and compared with Sturlesson's Heimskringla, using all scientific resources available.