The earliest evidence of human activity in Lincoln (Lincolnshire, England), dating back to 4,500-6,500 BCE, has been discovered. Hundreds of pieces of flint were unearthed during the excavation of a new flood alleviation pond south of the university's Lincoln School of Architecture. Tools found include microliths and blades typical of the Mesolithic period, or Middle Stone Age.
     City archaeologist Mick Jones said: "This extremely important site is by far the earliest evidence of human activity on the site of the present-day city." The previous earliest evidence was of an Iron Age building dating to the first century BC, also found near the Brayford Pool.

Source: Lincoln Today (12 July 2006)