Complex sentence: A more substantial Bronze Age settlement is known to have existed; the remains of what may have been a causeway were discovered in 1934, wooden piles unearthed by a farmer between Little Thetford and Barway.
Split into simpler sentences: A more substantial Bronze Age settlement is known to have existed. The remains of what may have been a causeway were discovered in 1934, wooden piles unearthed by a farmer between Little Thetford and Barway.