Non-Europ-centric math history

I recently learned that the Chinese invented the printing press long before Gutenberg did and I had no idea. That led me to wonder about the history of math.

What are some mathematical discoveries, or facts about mathematical history, or math myths from the ancient world outside of Europe/Greece?

For example, we all know about the (probably false) story about how they drowned Hippasus for proving the square root of two was irrational.

And we all know the story about Archimedes getting killed while drawing circles on the beach.

And we all know about Newton and Leibniz discovering calculus. Etc etc.

I know very few such anecdotes from other parts of the world and would like to hear them.