Viking expansion 英語版 Viking expansion Viking expansion to the British Isles http://en.wikipedia.org/wiki/Viking_expansion English Denmark English http://en.wikipedia.org/wiki/Viking_expansion 英語版 http://en.wikipedia.org/wiki/Viking_expansion http://en.wikipedia.org/wiki/Viking_expansion http://en.wikipedia.org/wiki/Viking_expansion Denmark Norse-era Viking expansion http://en.wikipedia.org/wiki/Viking_expansion Viking expansion http://en.wikipedia.org/wiki/Viking_expansion http://en.wikipedia.org/wiki/Viking_expansion English http://en.wikipedia.org/wiki/Viking_expansion English Source 2 Source 2 http://en.wikipedia.org/wiki/Viking_expansion