>>surpri+(OP)
A mile is exactly 1000 paces, or 4000 feet. You may disagree, but consider: the word mile come from latin for "one thousand". Therefore a mile must be 1000 of something, namely paces. I hope you find this argument convincing.
>>kazina+hP1
Not to be confused with the 1600 meter or "1 mile" race which is commonly run in US track and field events (i.e. 4 times around a 400 meter track). At least that's within 1% of an actual mile.