Need help asap!! When historians refer to "Prehistory", what are they talking about?

The era before humans populated the Earth

The era before the written word was invented

The era before agriculture was invented

The era before the traditional family unit was established

What requirements were placed on germany in the treaty of versailles? (choose 3) question 2 options: give up 1 million square miles of land cease the development of the nuclear bomb limit the size of its armed forces pay reparations to other countries export food to countries most damaged by the war claim shared responsibility for the war with the united states