There is no key to civilization. The concept that native americans did not have a civilization or were not civilized is one only supported by the egotism and arrogance of the empirical profit oriented "conquerers" who have worked to eradicate all cultures that conflict with profits. The key to western civilization that allowed them to kill off the majority of the natives was a lack of respect for life and insane drive for control, ownership and dominance, to which the peaceful and sophisticated Natives would not stoop.
Napoleon Bonaparte came to power in France by a coup d'etat. He overthrew the Directory, which was in charge at the time and created a dictatorship straight away. He then became "First Consul" of France for ten years before ruling as an emperor. Napoleon Bonaparte established the Napoleonic Code, where there was freedom of religion, and demanded that people should not receive jobs based on their social status, but on their merit.
In order to pass legislation and send it to the President for his signature, both the House and the Senate must pass the same bill by majority vote. If the President vetoes a bill, they may override his veto by passing the bill again in each chamber with at least two-thirds of each body voting in favor. It’s a simple majority like 51 of 100 or 26 of 50.