The Metropole covers 814 km2 and has a population of 6.945 million persons. After many modifications, the model new area, named the Metropolis of Grand Paris, with a population of 6.7 million, was created on 1 January 2016. The population of Paris had dropped by one hundred,000 through the Revolution, but between 1799 and 1815, it surged with a hundred and sixty,000 new residents, reaching 660,000....