André Geraque Kiffer 
Medieval Empires In Europe, 750 To 1453 [PDF ebook] 

The simulation will cover seven hundred years (AD 750-1453) of history from the establishment of the boundaries between the maximum expansion of Islam against Christianity in Europe. In philosophy there was a period in the Medieval Age when almost all the works of the great ancient philosopher Plato were unknown, but before that and after the rediscovery of his texts (Petrarch in the XIV century had a Plato manuscript) he was read and taken as a reference point. In the simulation we will imagine that the rediscovery had occurred earlier, let s say in the so-called ‚Carolingian Renaissance‘ from the year 787.