Miniature golf, also known as minigolf, or putt-putt, is an offshoot of the sport of golf focusing solely on the putting aspect of its parent game. It is played on courses consisting of a series of holes (usually a multiple of 9) similar to its parent, but characterized by their short length (usually within 10 yards from tee to cup), the use of artificial putting surfaces such as carpet, astroturf and/or concrete, a geometric layout often requiring non-traditional putting lines such as bank shots, and artificial obstacles such as tunnels/tubes, ramps, concrete/metal/fiberglass forms, and moving obstacles such as windmills. When miniature golf retains many of these characteristics but without the use of any props or obstacles, it is purely a mini version of its parent game.
While the international sports organization World Minigolf Sport Federation (WMF) prefers to use the name "minigolf", the general public in different countries has also many other names for the game: miniature golf, mini-golf, midget golf, goofy golf, shorties, extreme golf, crazy golf, adventure golf, mini-putt, putter golf and so on. The name Putt-Putt is the trademark of an American company that builds and franchises miniature golf courses in addition to other family-oriented entertainment, and the term "putt-putt" is sometimes used colloquially to refer to the game itself. The term "Minigolf" was formerly a registered trademark of a Swedish company that built its own patented type of minigolf courses. Resort towns such as Myrtle Beach, SC, Branson, MO, Pigeon Forge, TN and Wisconsin Dells, WI are known for their numerous minigolf courses.
Geometrically-shaped minigolf courses made of artificial materials (carpet) began to emerge during the early 20th century. The earliest documented mention of such a course is in the 8 June 1912 edition of The Illustrated London News, which introduces a minigolf course called Gofstacle.
The first standardized minigolf courses to enter commercial mass-production were the Thistle Dhu ("This'll Do") course 1916 in Pinehurst, North Carolina, and the 1927 Tom Thumb patent of Garnet Carter from Lookout Mountain, Tennessee. Thomas McCulloch Fairbairn (inventor), a golf fanatic, revolutionized the game in 1922 with his formulation of a suitable artificial green—a mixture of cottonseed hulls, sand, oil, and dye. With this discovery, miniature golf became accessible everywhere; by the late 1920s there were over 150 rooftop courses in New York City alone, and tens of thousands across the United States. This American minigolf boom of early 20th century came to an end during the economic depression in the late 1930s. Nearly all minigolf courses in the United States were closed and demolished before the end of the 1930s. A rare surviving example from this period is the Parkside Whispering Pines Miniature Golf Course located near Rochester, New York, and listed on the National Register of Historic Places in 2002.