Cycling. Cycling, also known as bicycling or biking, is the activity of riding a bicycle or other type of cycle.
It encompasses the use of human-powered vehicles such as balance bikes, unicycles, tricycles, and quadricycles. Cycling is practised around the world for purposes including transport, recreation, exercise, and competitive sport.
Main article: History of cycling Cycling became popularlised in Europe and North America in the latter part and especially the last decade of the 19th century. Today, over 50 percent of the human population knows how to ride a bike.
Main article: Bicycle infantry The bicycle has been used as a method of reconnaissance as well as transporting soldiers and supplies to combat zones. In this it has taken over many of the functions of horses in warfare.
In the Second Boer War, both sides used bicycles for scouting. In World War I, France, Germany, Australia and New Zealand used bicycles to move troops. In its 1937 invasion of China, Japan employed some 50,000 bicycle troops, and similar forces were instrumental in Japan's march or roll through Malaya in World War II. Germany used bicycles again in World War II, while the British employed airborne Cycle-commandos with folding bikes. In the Vietnam War, communist forces used bicycles extensively as cargo carriers along the Ho Chi Minh Trail. The last country known to maintain a regiment of bicycle troops was