In a pedestrian circumnavigation, travelers must move around the globe and return to their starting point by their own power, either walking or running.
The Guinness Book of World Records sets the requirements for a circumnavigation on foot as having traveled 18,000 miles, and crossed four continents.
Starting in 1875, dozens of circumnavigation ultrawalkers emerged, most of them frauds who fooled the public to win wagers and made a living giving lectures about their supposed "walks".
The following list shows people who have, or claim to have, completed a circumnavigation on foot, sorted by date of departure.
On 1 August 1999, Polly Letofsky left her home in Colorado on a five-year journey spanning four continents and 22 countries.