39th century BC

39th century BC

39th century BC Millennium:    4th millennium BC

Events Two wooden posts set in the ground and crossing at an angle support a wooden board, which disappears into tall green reeds A replica of the Sweet Track The Post Track, an ancient causeway in the Somerset Levels, England, is built c. 3838 BC. It is one of the oldest engineered roads discovered in Northern Europe. The Sweet Track, an ancient causeway also in the Somerset Levels, the oldest timber trackway discovered in Northern Europe, is built in 3807 BC or 3806 BC, tree-ring dating (Dendrochronology) enabled very precise dating. Plough in use.