sentences:  A survey in Greenland in 1911 found that of a total of 2,228 hunters with a kayak of their own, 867 were able to roll.In 1605, some Inuit men and their kayaks were brought back to Europe by a Danish expedition; they gave a demonstration of rolling and racing against rowing boats in Copenhagen harbour, watched by King Christian IV.A similar exhibition was held at The Hague in 1625.