You mean a strong Central government. They wanted a strong government to prevent conflicts among the states, and to display political power. If the states had too much power, then you couldn't call it the United States.
Assuming the options found elsewhere, one of the achievements of pre-Columbian (i think you mean Mesoamerican, not "mess") cultures would show that they had intensive architecture, which they sustained through intensive agriculture.
I think its Enforcing non-discriminatory voting policies in Atlanta and the suburbs