Cool article! My favorite fact about the Incan empire is that the University of Oxford is older than it.

https://www.smithsonianmag.com/smart-news/university-oxford-...

That's correct, though the article mentions the Aztecs, but thinking of the Inca empire as a standalone unit is sort of dubious. The Inca were just the named phase of upper Andean civilization when the conquistadors arrived. Most of what's considered Inca empire was already in existence for a long time. It's much more reasonable to consider upper Andean civilization as a whole instead of just looking at the final administration and taking that name.

And it lasted less than 100 years, barely a blip by historical standards!