Mesolithic Britain Imagine a world with no cities, no shopping centres, no T.V. or internet, not even schools, paper or pencils. Welcome to our latest sets of worksheets on Prehistoric Britain. Our brand new sets of worksheets look at the Mesolithic era, or middle stone age period, from around 10 000 BC to about 4 000 BC. Many children love reading about these times of hunter gathering and ancient skeletons being discovered. Go to English: Comprehension: Prehistoric Britain