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In clans or social groups that used wooden self bows (bows made entirely from one piece of wood) bows would sometimes be crafted by the individual user; however, even with fairly simple bow designs it was often easier to rely upon a few skilled bowyers within the group. By working in groups more could be accomplished. In medieval England, for example, professional bowyers produced thousands of bows required for that country’s military. These bowyers could reportedly make an English longbow in as little as two hours. Wooden selfbows normally take from 5–15 hours of work depending on the skill of the bowyer and the challenges set by the piece of wood. Modern amateurs find it satisfying to make functional self bows with beginner's skills and few tools.