In this scenario an Asteroid that missed Earth around 100 AD enters a collision coarse with the planet. The Asteroid is a half mile in size and is 40% iron, 50% Rock and 10% Gold. This massive rock strikes in the center of Gaul with 10 Gigatons of explosive force. Needless to say it is a bad day for everyone on the Eurasian landmass. What is the aftermath of the strike for the remaining civilizations of the time? How will history unfold from this time forward?