3 ms·
The USA had two different miles until a year ago: the international standard mile (based on Carl Edvard Johansson’s inch), and the US Survey mile. https://en.wi
by fanf2 3y ago
The USA had two different miles until a year ago: the international standard mile (based on Carl Edvard Johansson’s inch), and the US Survey mile. https://en.wikipedia.org/wiki/Mile#US_survey https://en.wikipedia.org/wiki/Mile#US_survey