Tag Archives: Ancient Greece

Agate
Agate: A Comprehensive Guide to Its Origins, Uses, and Healing Properties

Agate, from its volcanic origins to its diverse healing and spiritual uses, and understand its historical significance and practical applications in modern life

Above: Evidence for the Earth's round shape is the curved shadow it casts on the Moon during a lunar eclipse, as seen in this 2008 observation from Greece. Main image: An engraving of the sixth-century BCE Greek philosopher and mathematician Pythagoras, one of the early proponents of the idea that the Earth is a spherical object.
c. 500 BCE: Pythagoras and the Spherical Earth

The concept of a spherical Earth, now a fundamental understanding, was popularized by Pythagoras, the 6th-century BCE Greek philosopher. His indirect arguments, from observing lunar eclipses to the changing positions of constellations, laid the groundwork [...]