Scotland is credited with inventing the game of golf in the 15th century. In that era, golf heads were made from beech, holly, pear or apple bark, and shafts were constructed from ash or hazelwood. In the 19th century, golf came to the US and players used twenty to thirty wooden clubs for various functions. As the sport became more popular in the States in the early twentieth century, persimmon became the wood of choice for golfers worldwide and groove-faced irons were introduced. Simultaneously, shafts transitioned from hickory to being made of steel. In 1939, official regulations established the maximum of fourteen clubs per bag. In the early 1990s, the stainless steel-headed driver was introduced, forcing the wood-headed drivers into storage from which we salvage them.