How have the governments of the romans and greeks influenced our modern western governments?

The Greek and Roman civilizations influenced us today in many ways. There way of doing things 2000 years ago is now a structure on how we do things now. They influenced how we use politics like a congress and senate to democracies. The also help economical ways, by buying and trading things across seas. Also, they help us form Religions, like Judeo-Christian. Greek and Roman civilizations were a big help to us today.There are many ways that the Greek and Roman civilizations have influenced the USA. Many of the ways are political, in the Greek civilizations, also known as a Polis, would have group meetings of all the citizens in the city to discuss the public affairs, to choose officials, and to make and pass laws.

The romans and the greeks both had appointed leaders to lead their whole i guess you would say kingdom as like the modern west governments also appoint one person as their leader but have others to guide him as well