Source?
I’ve heard greater numbers referenced before but I try to be generous when I don’t have the exact numbers at my fingertips. Due to your challenge, I did a little research to find a good source. You are correct... I was wrong...
According to World Christian Encyclopedia, there are over 33,000 denominations in 238 countries having increased in number from 8,196 in 1970.
Seriously that might well be an understatement.
The source of conflict between the RCs and the Huguenots turned out to be where they said their prayers ~ and little more than that.
The Huguenots claimed a chapel in the home was OK. The RCs demanded adherence to a custom that required regular church attendance. (Louis XIV made it a death penalty to fail to conform).
Things sure got out of hand after that issue was not resolved.
I find the situation rather bizarre since every RC I know personally has a spot set aside in the home where you can pray and read the Bible.
I do believe the Huguenots won the theological arguments if not the ecclesiastical debate!