Aztec history is a weird rabbit hole let me tell you.
They have a bloody and disturbing history. People talk about the heart ripping thing, but they don't talk about the Rain god sacrifice where they would beat children in front of their friends/family until they cried and then drown them in their tears. They're interesting where they have the craziest traditions that would be looked down upon in advanced societies like Greece or Rome, yet it's been argued that they're MORE ADVANCED than Greece and Rome which is a real trip.
Oh yeah, also the founding of Mexico City is really hilarious. Here's the story: So the Aztecs were told by their god that they'll find the Promised Land (yes, they also believed in that and it's weird how similar it is to Numbers considering the fact Mexicans had a difficult time understanding Christianity when the Spanish introduced this) when they see an Eagle perched on a cactus with a snake in its mouth. They've been wandering around until they found it.... in the middle of a lake. And yes, for those of you who don't know... Mexico City is built on a lake.
These guys are hardcore let me... let me tell you.
I'm thinking of sharing my notes once I'm done.
Anyway, I'm glad I'm finally putting it into use in That Stick Figure Isekai: