Cambridgeshire essex butterfly
During the Roman era roads and ports were constructed throughout the county and farming was widespread.
Situated on the east coast, Norfolk was vulnerable to invasions from Scandinavia and Northern Europe, and forts were built to defend against the Angles and Saxons.
The Shoreline Management Plan states that the stretch of coast will be protected for at least another 50 years, but that in the face of sea level rise and post-glacial lowering of land levels in the South East, there is an urgent need for further research to inform future management decisions, including the possibility that the sea defences may have to be realigned to a more sustainable position.
Natural England have contributed some research into the impacts on the environment of various realignment options.
During the Second World War agriculture rapidly intensified, and it has remained very intensive since, with the establishment of large fields for growing cereals and oilseed rape.
Norfolk's low-lying land and easily eroded cliffs, many of which are chalk and clay, make it vulnerable to the sea; the most recent major event was the North Sea flood of 1953.
The influence of the Early English settlers can be seen in the many place names ending in "-ton" and "-ham".
A Brythonic tribe, the Iceni, inhabited the county from the 1st century BC to the end of the 1st century AD.
They have secured an enterprise zone to help grow businesses in the energy sector, and established the two counties as a centre for growing services and products for the green economy.
To help local industry in Norwich, the local council offered a wireless internet service but this has now been withdrawn as funding has ceased.
By the 5th century the Angles, after whom East Anglia and England itself are named, had established control of the region and later became the "north folk" and the "south folk", hence, "Norfolk" and "Suffolk".
Norfolk, Suffolk and several adjacent areas became the kingdom of East Anglia (one of the heptarchy), which later merged with Mercia and then with Wessex.