Bicycle messengers (also known as bike or cycle couriers) are people who work for courier companies (also known as messenger companies) carrying and delivering items by bicycle. Bicycle messengers are most often found in the central business districts of metropolitan areas. Courier companies use bike messengers because bicycle travel is less subject to unexpected holdups in city traffic jams, and is not deterred by parking limitations, fees or fines in high-density development that can hinder or prevent delivery by motor vehicle, thereby offering a predictable delivery time. History Almost immediately after the development of the pedal-driven velocipede in the 1860s, people began to use the bicycle for delivery purposes. David V. Herlihy's 2004 book on the early history of the bicycle contains several references to bicycle messengers working during the late 19th century, including a description of couriers employed by the Paris stock exchange in the 1870s. During the bicycle boom of the 1890s in the United States, Western Union employed a number of bicycle telegraph boys in New York City, San Francisco, and other large population centers. One of the earliest recorded post-war American bicycle courier companies was founded by Carl Sparks, in San Francisco, in 1945. According to the San Francisco Bicycle Messenger Association, "Sparkie's went on to become Aero, which was bought out in 1998 [and] later absorbed into CitySprint." By the late 1970s, there were well-established companies offering bicycle messenger services in many major cities in the U.S. In Europe, the bicycle had fallen out of favour as a means of delivery in the third quarter of the 20th century. It was not until 1983 that bicycle messengers made their reappearance in Europe. London's "On Yer Bike" and "Pedal-Pushers" were pioneers of pedal over petrol, and the rest of the city's courier companies followed suit. By the late 1980s, cycle couriers were a common sight in central London and a British manufacturer named a range of mountain-bikes for them, the Muddy Fox 'Courier'. Entrepreneurs in continental Europe, some inspired by seeing couriers in the U.S. or in London, began to offer bicycle courier services in the late 1980s, and by 1993 there were sufficiently large numbers of bicycle couriers in Northern Europe and North America that over 400 attended the inaugural Cycle Messenger Championships in Berlin, Germany. Bicycle messengers have not become common in southern Europe, the heartland of world competitive cycling. There are very few