Meters, Kilometers, Miles.
1400 years ago people knew the cubit, a measure suitable for short distances. Meters, kilometers and miles were not invented yet, however we found their equivalent in the Quran.
[Quran 69:32] Then in a chain which length is seventy cubits tie him up.
It turned-out that 70 cubits are equivalent to 32 meters, same number of the verse itself.
70 cubits is equivalent to 32 meters. The number of the verse is 32.
For kilometers, the number of verses to Iron in the Quran is the same number of kilometers to Iron on Earth. From the beginning of the Quran there is 5100 verses to the Iron verse in chapter Iron. It turned out that Iron on Earth is concentrated at its core 5100 km below the surface.
With a radius of almost 3,500 km (2,200 miles), Earth's core is about the size of the entire planet Mars. About one-third of Earth's mass is contained in the core, most of which is liquid iron alloyed with nickel and some lighter, cosmically abundant components (e.g., sulfur, oxygen, and, controversially, even hydrogen). Its liquid nature is revealed by the failure of shear-type seismic waves to penetrate the core. A small, central part of the core, however, below a depth of about 5,100 km (3,200 miles), is solid iron.
Britannica, Earth The Enterior, 2019
Number of verses to Iron in the Quran is the same number of kilometers to Iron on Earth.
For miles, the number of verses between Kaaba and Al-Aqsa Mosque is the same number of miles between them geographically.
[Quran 9:28] O you who believe! The polytheists are polluted, so let them not approach the Sacred Mosque after this year of theirs. And if you fear poverty, Allah will enrich you from His grace, if He wills. Allah is Aware and Wise.
[Quran 17:1] Glory to Him who journeyed His servant by night, from the Sacred Mosque, to the Al-Aqsa Mosque, whose precincts We have blessed, in order to show him of Our wonders. He is the Listener, the Beholder.
The verses that contain the Sacred Mosque (Kaaba) and Al-Aqsa Mosque are separated by 767 verses. It turned-out that geographically they separated by 767 miles.
Getting the coordinates from Google Maps.
Kaaba 21.4225° N, 39.8262° E
Aqsa 31.7761° N, 35.2358° E
Using Coordinate Distance Calculator to get the distance between the two locations.
The distance between the two mosques is 767 miles.
How could an illiterate man who lived 1400 years ago have known about Meters, Kilometers and Miles?