If you are talking about the formation of globalism from the likes of the Rothschild family and others coming together, I agree a lot was beginning to form in the 1800s.
However, at the same time, I would still consider looking at what the Jesuits have contributed to the formation of a new world order and the Jesuits go back at least a few centuries I think and not just the Jesuits but also Satanists and maybe some of the bad Free Mason members (assuming some of them were not as bad once upon a time before they were infiltrated) and perhaps other groups too.
Perhaps the current global empire or new globalism world order really started rising in the 1800s and that before that there were previous empires like the British empire, the Roman Empire, the Babylonian Empire, the Egyptian Empire, etc. Or it could be argued that to some extent a continuation of some of the empires or adaptation of the empires over many centuries.
I believe there was a formation or at least an attempt at the Bank of England in 1695 which would predate the 1800s and perhaps that was a failure or not a finalization in seeking global control over countries. Perhaps globalists really started accelerating momentum in their global tyranny and manipulation over centralized fiat currency and power in general in the 1800s like you said.
So, in that sense and to that degree, I can agree a lot started changing at a higher percentage and in a bigger way starting in the 1800s as a contrast to previous centuries regarding overall global structuring of money and power and everything.
1 - YOU SHOULD WRITE A BOOK
2 - YES, IT TOOK A LONG TIME FOR THESE PEOPLE TO MAKE THE WORLD INTO WHAT IT LOOKS LIKE TODAY, AND IT STARTED BEFORE THE LATE 1800s
1, I should write books, working on that, 2, globalists been out there but so has the good guys too.
Who the heck are the "good guys"?
good question