In 800 AD the Vikings founded Tynwald, the oldest working parliament in the world. This Parliament is still in existence on the island today. Iceland and San Marino lay claims to being older, but it is now acknowledged that The Isle of Man Tynwald, since it's conception, is the one with the unbroken record of service. Therefore, it is officially, the oldest known continuous Parliament and a model for followers of the Nordic System Of Parliament elsewhere.
Tynwald means open assembly in old Norse and can be linked to similar assemblies on Island (Tingvellir) and the Faroe Islands (Logting).
The Tynwald might have been local and regional to begin with and then later developed into one centralized assembly or goverment. These Tynwalds were already in operation before the establisment of Parliamentary Goverment in England. Long Before!
At Tynwald old laws or rules from the local areas were made official, new laws submitted and punishments were metered out to law breakers. Again, the Vikings implemented rules and regulations, and a system of government not just as we are often lead to believe plunder for spoils and sail away. In fact the evidence proves otherwise, with the Tynwald being the best, lasting legacy.
The unofficial Manx National Flower is the yellow Ragwort, known locally as Cushag, which blooms in late summer. However landowners are legally obliged to clear it as it's poisonous to cattle. Gorse, spurned by farmers in many other parts of Britain, is an integral part of the Manx landscape and many gorse and earth sod hedges date back to Viking times. So again you see not only the Parliament is Norse, so too is the albeit unofficial National Flower, which just happens to grow on my beloved nature reserve.