German alchemist Bernard of Treves creates the Philosopher's Stone in 1488, resulting in the existence of functional alchemy. Leonardo da Vinci uses the Stone in his inventions, which helps the Medicis unite Italy, the Austrians using the inventions to drive back the Turks, and, in 1617, allowimg Sir Walter Raleigh to be the first man to land on Venus. The current year is 1632. IW113