A hunter-gatherer is a human living in a society in which most or all food is obtained by foraging. A nomad is someone who lives by traveling from place to place. Nomadic thus means anything that involves moving around a lot. Nomadic hunter-gatherer tribes follow the animals they hunt, carrying tents with them. You don't have to be a nomad to live a nomadic lifestyle. Hunter-gatherer societies stand in contrast to agricultural societies, which rely mainly on domesticated species.
The result of the civil wars between leaders of the wealthy and lower classes in Rome during the 2nd and 1st centuries B.C. was A) Victorious generals became dictators.
