The Romans were into the "invade everything" business, 2,500 years ago. They ruled over kingdoms all around the Mediterranean. The Greeks (well, Macedonians, i

The Romans were into the "invade everything" business, 2,500 years ago. They ruled over kingdoms all around the Mediterranean. The Greeks (well, Macedonians, if you prefer) built an empire that lasted 1,000 years, and stretched from the Mediterranean to Afghanistan. All during the lifetime of a warrior who died aged 32 (?). That was around 320BC. So you have to go quite early in history, to find a culture that precedes "invade everything" imperialism (I doubt that there is any "beginning" to invade-everyone imperialism).