What percent of adult male citizens in Athens could vote in the assembly

Polis - the Greek City State (The first known democracies in the World)

Explanation:

The Polis or the Greek City States were mostly comprising of the city of Athens and the surroundings. They practiced the first form of democracy which obviously was not as developed as today's democracy but to certain degree it qualifies as to be rightly call as the pioneer of.

Legislation and executive practices were observed in the Athenian democracy but were limited to the adult, Male citizens of the community which was not more then 30% of the population. While the females , slaves and other members of the community were not allowed to vole.

the 22nd united states congress