A wheel is round. It pretty much has to be. There is no Chinese wheel, Russian wheel, American wheel when it comes to roundness and utility.
There is no Arabian Physics or Iranian Physics, or North Korean Physics because atoms and molecules and quarks and such perfectly accord with the reality of how things operate in our Universe.
F always = M A (Force is equal to mass times acceleration) and E is always = to MC2 (energy in ergs is always equal to mass times the speed of light squared.)
There are no national variations or versions of Math, Science, Astronomy, Engineering, etc. for very good reasons.
All of the basic principles in the branches of knowledge correspond perfectly and demonstrably with provable useful and operational instances.
"Opinions" don't count. Peer review is a necessity.
What about RELIGION?
This is my whole point!
In Christianity alone, there are about 40 thousand denominational versions, interpretations, variations asserted to be TRUTH itself, at odds with the other opinions.
SEE THE DIFFERENCE? In Religion it is ALL OPINION!
Euclid's book on Geometry (THE ELEMENTS) was compiled in 300 B.C. It is still valid anyplace on Earth, any school, in any country. Yet, the New Testament, which came about 400 years later--is the most contested text in history as to versions and contentions and interpretations!
Science, Math, Geometry, Engineering, etc are based on Axioms, Principles, Operations which conform to reality in a way which DOESN't COMPORT with national or sectarian "opinions" in a contradictory way that Religion invites.
Shouldn't this be a CLUE?
Christians, Jews, Muslims have their own way of counting time--did you know that?
Do you know what year it is, for example, for a Jew right now? It is 5775.
For a Muslim? It is 1438.
Anything which invites OPINION and INTERPRETATION with equal standing does not match reality.
"Three plus three equals six."
"Not in my church! It equals seven."
That's religion.
For a couple of thousand years, Christian "math" tells us God the Father, God the Son, and God the Holy Ghost = a TRI-(3-)NITY consisting of 1 God.
That's not a reality where you'd want your paycheck to come from :)