Which ancient ruler is credited with the invention of democracy?

The ancient ruler credited with the invention of democracy is Cleisthenes. To find this answer, one way is to search for "inventor of democracy" or "ancient ruler democracy" in a search engine. Another way is to consult history textbooks or reliable sources that discuss the origins of democracy in ancient Greece. Cleisthenes is specifically recognized for introducing democratic reforms in Athens around 508 BC, which laid the foundation for the Athenian democracy system.

The ancient ruler credited with the invention of democracy is Cleisthenes of Athens.