In much of the prehistoric period, the environmental conditions were less severe than they are today.

He confined his attention to the prehistoric period and made no attempt at a real history.

Bronze was discovered a very long time back in history (prehistoric period).

Mayapur had been a religious place right from the prehistoric period.

Its exhibits will be findings that date from the prehistoric period until now.

The area known today as Croatia was inhabited throughout the prehistoric period.

He is considered an expert on the prehistoric period of Albania.

The actual significance of these symbols in the prehistoric period is not known.

Stencil paintings of hands were common throughout the prehistoric period.

There have been humans in the Temoaya area since the prehistoric period.