The first field kitchens were carried in four-wheeled wagons by military units on campaign throughout history. Indeed, this method of feeding a large travelling group of people was often used, such as on the Wagon Trail in late 19th Century America where the Chuckwagon was employed. By the 20th Century, smaller two-wheeled trailers, became common, especially with the invention of locomotive travel. Field Kitchens were often given affectionate nicknames.