A study looking into the sound created by an mesoamerican instrument known as the Aztec 'death whistle' revealed the effect ...

Before their defeat by the Spanish in 1521 ... Following the fall of Tenochtitlan, an Aztec poet composed a searing account of the capture of the capital city. Written in the Nahuatl language ...

A noise dubbed the ‘most terrifying sound in the world’ that was last thing people heard before death was caught on doorbell ...

The discovery also sheds light on how the Aztec society evolved — introducing more standardized religion and control before the empire fell in 1521 — by showing how obsidian use changed over time.