They weren't all started in the 1800s, they were all started in the past and you're squishing 300 years of history into a single chunk of time, ignoring that there were decades-long gaps between foundings.
In my state there were four waves of foundings: colonial pre-USA land grant institutions, rich guy vanity projects a century later, post-WWII expansions 80 years after that, and biotech/health care market growth in the 2000s.
https://en.wikipedia.org/wiki/List_of_colleges_and_universit...
And then sort by year.
They weren't all started in the 1800s, they were all started in the past and you're squishing 300 years of history into a single chunk of time, ignoring that there were decades-long gaps between foundings.
In my state there were four waves of foundings: colonial pre-USA land grant institutions, rich guy vanity projects a century later, post-WWII expansions 80 years after that, and biotech/health care market growth in the 2000s.