Le BONHEUR comme indice d'épanouissement social et économique.

"For centuries in early and middle antiquity, Europe meant the world surrounding the Mediterranean. It included North Africa, but the swift advance of Islam across North Africa in the seventh and eighth centuries virtually extinguished Christianity there, thus severing the Mediterranean region into two civilizational halves, with the 'Middle Sea' a hard border between them rather than a unifying force. Islam is now helping to undo what it once helped to create. A classical geography is organically reasserting itself, as the forces of terrorism and human migration reunite the Mediterranean Basin, including North Africa and the Levant, with Europe." 

"Over the course of human history, thousands of languages have developed from what was once a much smaller number. How did we end up with so many? And how do we keep track of them all? Alex Gendler explains how linguists group languages into language families, demonstrating how these linguistic trees give us crucial insights into the past."