After staging a lovely coup, Napoleon gets right down to business with the Concordat of 1801, allowing Catholicism as an accepted, though not official religion of France, and also drafted up his ever controversial Napoleonic Code, which allowed for meritocracy. Sweet. Unfortunately, he grew a bit war happy, creating the Continental System as means of foreign policy (an embargo aimed at hurting the British), and developing a Spanish Ulcer during the midst of the Peninsular War (1808-12), started when Portugal refused to comply with the terms of the Continental System or the Napoleonic Code. He invaded Russia in the winter and understandably froze to death, forcing him to retreat, marking the beginning of the end. After being exiled to Elba, he escaped during the hundred days (1815), greeted with enthusiasm upon arrival. That enthusiasm died down when he lost big time at Waterloo (1815). He, too, died down, of stomach cancer at St. Helena.