Bath and North East Somerset Age hill fort or stock enclosure. A Long barrow site believed to be from the Beaker people was flattened to make way for RAF Charmy Down. The archaeological evidence shows that the site of the Roman Baths' main spring was treated as a shrine by the Celts, and was dedicated to the goddess Sulis, whom the Romans identified with Minerva; however, the name Sulis continued to be used after the Roman invasion, leading to Bath's Roman name of "Aquae Sulis" (literally, "the waters of Sulis"). Excavations carried out before the flooding of Chew Valley Lake also uncovered Roman remains, indicating
Aphanizomenon flos-aquae samples exceeded the safety value of 1 µg microcystin per gram. University professor Daniel Dietrich warned parents not to let children consume "A. flos-aquae" products, since children are even more vulnerable to toxic effects, due to lower body weight, and the continuous intake might lead to accumulation of toxins. Dietrich also warned against quackery schemes selling these cyanobacteria as medicine against illnesses such as attention deficit hyperactivity disorder, causing people to omit their regular drugs. A Canadian study studying the effect of "A. flos-aquae" on the immune and endocrine systems, as well as on general blood physiology, found that eating