Before revision: The Telekino remotely controlled a tricycle in 1904, considered the first case of a unmanned ground vehicle, and a crewed electric boat in 1906, which was controlled at a distance over 2 km.
After revision: The Telekino remotely controlled a tricycle in 1904, considered the first case of a unmanned ground vehicle, and a electric boat with a crew in 1906, which was controlled at a distance over 2 km.