He first mentioned Atlantis in one of his dialogues.

He built a seven-note harmonic musical scale.

Explained his ideas in the form of dialogues.

He won two Olympic competitions.

He tutored young Macedonian prince, future conqueror of the world - Alexander the Great. After Alexander became king, at 20, he gave his teacher a large sum of money to set up a school in Athens.

He fought bravely for Athens in the Peloponnesian War and in one of the battles saved the life of one of his friends.

Wrote about the ideal state that should be governed only by wise people.

He was sentenced to death as a heretic.

His works survived only in the writing of his students.

He believed that both the universe and man are constructed on the same harmonic proportions.

At the age of 22 he opened a school where he accepted children only for a small fee and those who couldn't afford to pay for their education - without a fee.

His philosophy also influenced the civilization of all of eastern Asia.

He emphasized the importance of having high moral principles as the basis of wisdom.