The most important building material, from early prehistoric times and well into the 20th century, was wood.
The land had already been settled in prehistoric times, of course.
Instead, it ends up taking them away back to the prehistoric times.
The area was settled in prehistoric times, more than 30,000 years ago.
The land has been used by humans since prehistoric times.
The series works back from the modern day to prehistoric times to explain the valley's history.
The route through the pass has been used since prehistoric times.
But the area has clearly been a popular settlement since prehistoric times.
Since prehistoric times, people have wanted to take to the skies.
The human figure has been the subject of drawings since prehistoric times.