Which ancient civilization developed the first democratic form of government?

Athenian democracy developed around the fifth century bc in the  greek  city-state (known as a polis) of athens, comprising the city of athens and the surrounding territory of attica, and is the first known democracy in the world

All men

Explanation:

In ancient Athens, it was only male citizens who could vote that were allowed to engage in politics. Today, politics more broadly refers to the activities (including cooperation and conflict) among people that create and maintain a government. "Pnyx-berg2" by unknown author is licensed under CC BY-SA 3.0 A Foundation for Democracy