Which Athenian leader was responsible for outlawing debt slavery and instituting widespread constitutional reform in the sixth century B.C.E.?

Pericles was a prominent Athenian leader during the Golden Age of Athens, known for his contributions to democracy and the arts. However, he did not initiate the reforms that outlawed debt slavery; those were implemented by Solon earlier in the century.

Aristotle was a philosopher and not a political leader in Athens during the sixth century B.C.E. He lived in the fourth century B.C.E. and contributed to political philosophy but did not have a role in the reforms of debt slavery or constitutional changes during Solon's time.

Alcibiades was an influential Athenian general and politician known for his controversial actions during the Peloponnesian War. His political career occurred much later than Solon's reforms, and he did not focus on constitutional changes related to debt slavery.

Themistocles was an Athenian politician and general who played a key role in the naval expansion of Athens and its victory at the Battle of Salamis. However, he was not involved in the constitutional reforms aimed at abolishing debt slavery, which were the work of Solon.