This has been said before (actually many times before) but it bears repeating here.
The speed of light is in the Rk Veda, and not hidden in metaphors either.
In ManDalam 1, SUktam 50, the Vedas clearly say
It is remembered, Salutations to Thee [the Sun], the traveler of 2,202 yojanas in half a nimisha.
Yojana is a unit of distance, nimisha, a unit of time.
If you do the calculation, it comes to approximately 185,000 miles per second.
Compare that to the currently accepted value for the speed of light of 186,000. In fact the small difference could be accounted for by conversion error.
This is from a text dated at least to 7,000 BCE.
I think this is one of the coolest things I’ve learned ever.
For a look at the original Sanskrit, see below.
Pair this knowledge with the Yoga Suutra on the Sun, and you get the conduit to other worlds, just as physicists agree that the speed of light is essential to understanding other universes.