Thales

• Thales of Miletus (624-526 BCE) was a Greek Astronomer and one of the Seven Sages of Greece.
• Thales was the first to change the tradition of explaining the World by use of Mythology and instead used Scientific Theories.

Thales Theorem

• Thales Theorum shows that if a circle has three points A,B and C which produce a triangle, and AC is the diameter, then point B will be a right angle.

Works

• ‘Astronomy’:
  • Written in verse, according to Plutarch.
  • This was the first Greek Work on Astronomy.