How did cleisthenes contribute to the democracy in the Ancient Greece? pleas help

Solon (in 594 BC), Cleisthenes (in 508/7 BC), and Ephialtes (in 462 BC) contributed to the development of Athenian democracy. Cleisthenes broke up the power of the nobility by organizing citizens into ten groups based on where they lived, rather than on their wealth.

-18 metres sorry if im wrong

hi there!

question - in the 1900s there were two competing views about the environment that often pitted industrialist and conservationist against one another. how were these two competing views demonstrated by the environmental policies of president roosevelt and president taft?

hope this : )