In 621 BC, the archon eponymous polemarch issued a strict set of laws.
Step-by-step explanation:
The word Archon refers to ruler, especially to rulers who are a part of public offices. People hailing from aristocratic back grounds played a vital role in formation of the laws and regulations system and the responsibility was given to Archon Eponymous.
Thus making him one of the three Archons to have then administered ancient Greece. Although it was previously three, the number of Archons rose to ten as time went by. In 621 BC, the archon eponymous polemarch (title for senior military or warleader) issued a strict set of laws.