570s BC births

Pythagoras of Samos (;  BC) was an ancient Ionian Greek philosopher, polymath, and the eponymous founder of Pythagoreanism. His political and religious teachings were well known in Magna Graecia and influenced the philosophies of Plato, Aristotle, and, through them, Western philosophy. Modern scholars disagree regarding Pythagoras's education and influences, but most agree that he travelled to Croton in southern Italy around 530 BC, where he founded a school in which initiates were allegedly sworn to secrecy and lived a communal, ascetic lifestyle.

Xenophanes of Colophon ( ; ; – c. 478 BC) was a Greek philosopher, theologian, poet, and critic of Homer. He was born in Ionia and travelled throughout the Greek-speaking world in early classical antiquity.

Anacreon ( BC) was an Ancient Greek lyric poet, notable for his drinking songs and erotic poems. Later Greeks included him in the canonical list of Nine Lyric Poets. Anacreon wrote all of his poetry in the ancient Ionic dialect. Like all early lyric poetry, it was composed to be sung or recited to the accompaniment of music, usually the lyre. Anacreon's poetry touched on universal themes of love, infatuation, disappointment, revelry, parties, festivals, and the observations of everyday people and life.

Cleisthenes ( ; ), or Clisthenes (), was an ancient Athenian lawgiver credited with reforming the constitution of ancient Athens and setting it on a democratic footing in 508 BC. For these accomplishments, historians refer to him as "the father of Athenian democracy". He was a member of the aristocratic Alcmaeonid clan. He was the younger son of Megacles and Agariste making him the maternal grandson of the tyrant Cleisthenes of Sicyon. He was also credited with increasing the power of the Athenian citizens' assembly and for reducing the power of the nobility over Athenian politics.

Tyrant of Athens from 527 to 510 BC

ancient Chinese philosopher and politician from the state of Qi in the 6th century BC