[Cronos]

That burst was because the Moslem Caliphate stretched from India to Spain and allowed a mixing of thoughts and ideas, taking Indian mathematics, Greek geometry, Irani astronomy etc. and merging them together

The ones doing the merging were mostly non-Moslems

But as the % of Moslems increased, the developments decreased. the countries that became 100% Moslem were the cess-pits of the Islamic world from early on -- like Yemen and Saudi Arabia.

What a pity as yemen 5000 years ago was probably more advanced than it is now....

[Elendur]

That burst was because the Moslem Caliphate stretched from India to Spain and allowed a mixing of thoughts and ideas, taking Indian mathematics, Greek geometry, Irani astronomy etc. and merging them together

The ones doing the merging were mostly non-Moslems
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excellent summary. (your other posts are perfect also.)