Answer:
Participation was far from open to all residents, but was instead limited to adult, male citizens (i.e., not a foreign resident, regardless of how many generations of the family had lived in the city, nor a slave, nor a woman), who "were probably no more than 30 percent of the total adult population".
Napoleon lost power due to his failed major military campaigns. He tried to split his army to fight in two different fronts. He also retreated back to Paris after a crushing defeat.
Only the federal government can sign treaties.
Hope that helps.
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