Ancient India was tolerant to other societies

Societies maybe but individuals ? By the way: It isn't about "tolerance" it is about freedom !. You want only "tolerance" then go lick Bidet and Camela ass !

Ancient mongolians

Tribal culture with little to none respect for individualism where kidnapping a wife was common practice. Gengis armies murdered 10% of his times human population worldwide,and raped so many womens with his sons that his genes are probably in 8% of asian man population. Nice people /s

the vikings allowed a muslim scholar to stay with them for an extended period of time

Again - it isn't about "tolerance",it is about idea of freedom ! You don't have to be tolerant to embrace freedom.It is nice when you are,but it is not about tolerance. Vikings by the way ? Nice people even if they were not drinking from the skulls in fact /s

Iroquois league - again tollerant maybe yes, but we are talking about freedom.

Jews and Muslims used to get along more civilly than they do now

Again - it is not about tolerance but about freedom.Do you even have those word in your dictionary ? Do you understand what this word is ? F.R.E.E.D.O.M. How many times again I have to repeat those word ?

And I disagree about Muslims being tolerant in any countries where there were any important non-musslim minority living with them. Talking about muslims... Well... Until they are not too religious everything is fine,but the fact is many of their "priests" consider paedophilia legal and not only that. Islam as religion completely reject idea of freedom and it is more than religion - it is kind of theocratic totalitarian social system. ISIS not differs from those Muslims who were fought during crushades, our civilization advanced morally but theirs is still in dark ages.Or worse...: women circumcision... If I were optimist I would claim it is because of their calendar (you know,in Muslim calendar we have year 1442 ;D ),but really it is not about that.