Ancient civilizations observed the movements of celestial bodies with incredible accuracy. To predict eclipses and seasonal changes they utilized a seemingly unrelated object: a simple sundial. By carefully tracking the shadow cast by the sun on the sundial’s gnomon, they could determine the time of day and correlate it with specific astronomical events. Over time, they developed sophisticated sundials with intricate markings that allowed them to chart the sun’s path across the sky and predict future eclipses and seasonal shifts with

Prompt:
What seemingly unrelated object did ancient civilizations use to help predict eclipses and seasonal changes?