In a string of spectacular victories he conquered all of Gaul, invaded Germany, and twice landed in Britain - an achievement which in 55BC was greeted with a public euphoria comparable to that generated by the moon landing in 1969. In just thirty years he had risen from a position of virtual obscurity to become one of the richest men in the world, with the power single-handedly to overthrow the Republic. By his death, itself a spectacular event, he was effectively emperor of most of the known world.