How did the government in ancient Greece develop?

When a new law was proposed, all the citizens of Athens had the opportunity to vote on it.

Explanation:

To vote, citizens had to attend the assembly on the day the vote took place. This form of government is called direct democracy.

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power moved from the upper classes to include members of all social classes

Explanation:

it gave more people a say in policies and laws.  All groups had an equal vote under this new organization.  Citizens from all classes became more involved in government decisions.  It further developed the idea that the people had a right to be involved in a democratic government