‘Astounding new finds’ suggest ancient empire may be hiding in plain sight (sciencemag)

Teotihuacan was once a bustling, cosmopolitan metropolis, the center of an empire whose reach may have extended 1000 kilometers away to the Maya region.
New evidence from both Teotihuacan and the Maya region has brought the relationship between those two great cultures back into the spotlight—and hints it may have been more contentious than most researchers had thought. Evidence from Maya writing and art suggests Teotihuacan conquered Tikal outright, adding it to what some archaeologists see as a sweeping empire that may have included several Maya cities.