<span>For impeachment proceedings to begin, a president has to be accused of "t</span>reason, bribery, or other high crimes and misdemeanors.
The wealth of these city-states were flourishing, and it is visible because of the infrastructure being built. Note that better infrastructure is an opportunity for better trade. Trade = wealth.
It's called checks and balances.
No. speed limits for normal citizens are laws that we must follow. however, emergency vehicles can legally go over the speed limit anywhere.