Which one is Euclid?

This is Raphael's fresco The School of Athens, painted on a wall at the Vatican, in Rome. Can you guess which figure represents Euclid?

Some of the figures are "hot" (usually indicated by your cursor changing shape); leave your cursor still over such a figure and the figure's name will appear. Click on a figure for more information.

Zeno Pythagoras Socrates Hypatia Heraclitus Plato Aristotle Diogenes Euclid Zoroaster Raffaello Sanzio Ptolemy See figure's name by leaving cursor on its image!