The city-states were well established during the later middle ages. Some often city-states were Florence, Naples, Genoa, Milan, Rome and Venice. The city-states being in the coastal region became centres for trade which helped in bringing ideas and goods. Florence became the centre of the Renaissance. The city-states invited painters and sculptures where they created their masterpieces. Medici family were bankers who assisted in building Florence as a centre of art and culture. They became patrons for the painters, architects by spending their wealth to support them.
Veto is the constitutional right of the President to reject or cancel a law made by Congress. An example of the power of veto is when George Bush Sr. vetoed the Civil Rights Act of 1990 after is was approved by both the House and the Senate.
