Events

• The Post Track
  Post Track
  The Post Track is an ancient causeway in the Somerset Levels, England. It dates from around 3838 BC, making it some 30 years older than the Sweet Track from the same area. It was constructed of long ash planks, with lime and hazel posts spaced along 3-metre intervals...
  
  , an ancient causeway
  Causeway
  In modern usage, a causeway is a road or railway elevated, usually across a broad body of water or wetland.- Etymology :When first used, the word appeared in a form such as “causey way” making clear its derivation from the earlier form “causey”. This word seems to have come from the same source by...
  
   in the Somerset Levels
  Somerset Levels
  The Somerset Levels, or the Somerset Levels and Moors as they are less commonly but more correctly known, is a sparsely populated coastal plain and wetland area of central Somerset, South West England, between the Quantock and Mendip Hills...
  
  , England, is built, ca. 3838 BC. It is one of the oldest engineered road
  Road
  A road is a thoroughfare, route, or way on land between two places, which typically has been paved or otherwise improved to allow travel by some conveyance, including a horse, cart, or motor vehicle. Roads consist of one, or sometimes two, roadways each with one or more lanes and also any...
  
  s discovered in Northern Europe
  Northern Europe
  Northern Europe is the northern part or region of Europe. Northern Europe typically refers to the seven countries in the northern part of the European subcontinent which includes Denmark, Estonia, Latvia, Lithuania, Norway, Finland and Sweden...
  
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• The Sweet Track
  Sweet Track
  The Sweet Track is an ancient causeway in the Somerset Levels, England. It was built in 3807 or 3806 BC and has been claimed to be the oldest road in the world. It was the oldest timber trackway discovered in Northern Europe until the 2009 discovery of a 6,000 year-old trackway in Belmarsh Prison...
  
  , an ancient causeway also in the Somerset Levels, the oldest timber trackway
  Timber trackway
  A timber trackway was typically used as the shortest route between two places in a bog or peatland and have been built for thousands of years as a means of getting between two points. Timber trackways have been identified in archaeological finds in Neolithic England, dating to 500 years before...
  
   discovered in Northern Europe, is built in 3807 BC or 3806 BC, tree-ring dating (Dendrochronology)
  Dendrochronology
  Dendrochronology or tree-ring dating is the scientific method of dating based on the analysis of patterns of tree-rings. Dendrochronology can date the time at which tree rings were formed, in many types of wood, to the exact calendar year...
  
   enabled very precise dating.
• Plough
  Plough
  The plough or plow is a tool used in farming for initial cultivation of soil in preparation for sowing seed or planting. It has been a basic instrument for most of recorded history, and represents one of the major advances in agriculture...
  
   in use.
• 5.9 kiloyear event
  5.9 kiloyear event
  The 5.9 kiloyear event was one of the most intense aridification events during the Holocene. It occurred around 3900 BC, ending the Neolithic Subpluvial and probably initiated the most recent desiccation of the Sahara desert. Thus, it also triggered worldwide migration to river valleys, e.g...
  
  , one of the most intense aridification
  Aridification
  Aridification is the process of a region becoming increasingly dry. It refers to long term change rather than seasonal variation.It is often measured as the reduction of average soil moisture content....
  
   events during the Holocene
  Holocene
  The Holocene is a geological epoch which began at the end of the Pleistocene and continues to the present. The Holocene is part of the Quaternary period. Its name comes from the Greek words and , meaning "entirely recent"...
  
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