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Cleisthenes - By setting up a constitution
the real leaders of Athens were Solon , Peisistratus , Cleisthenes , & Pericles but the first one was Pericles ;]
Cleisthenes, Ephialtes, Pericles.
Pericles was considered one of the greatest rulers.
Cleisthenes (c. 570-508 BC) was a noble and politician of Athens who helped to establish its democratic procedures. He was the son of Megacles and his brother was the grandfather of Pericles of Athens.
Democracy
The Athenian leader, Pericles, established nearly complete democracy. Pericles fostered Athenian democracy to such an extent that critics call him a populist. The wealth of Pericles family allowed him to pursue and education. He was interested in music and the arts.
First Cleisthenes introduced limited democracy in 508 BCE, this was extended by Ephialtes in 462 BCE, and developed into a radical democracy by Pericles in 444 BCE.
Pericles had been educated by some of the leading philosophers of his day. Pericles was strongly influenced by Aspasia, a female philosopher and courtesan from Miletus, who lived in Athens, Greece. He was also influenced by his great uncle, Cleisthenes. Cleisthenes had given Athens its first democratic constitution. Pericles was determined to continue the reforms of his great uncle and serve his city-state by making it more democratic than ever.
Cleisthenes 508 BCE, restored by Ephialtes 460 BCE and cemented by Pericles after Ephialtes' assassination.
Cleisthenes in 508 BCE.
Cleisthenes began the democratic reforms in Athens in 508 BCE. This was advance by Ephialtes in 460 BCE when he removed aristocratic control which had re-established itself during the Persian War, and when he was assassinated his deputy Pericles took over and finished the job.