History of England By SECassady 5000 BCE Settlers inhabit England 2500 BCE Stonehenge is built 55 BCE Julius Caesar attempts second invasion; captured St. Albans 43 BCE Roman Emperor Claudius and 40,000 troops invade Britannia, it became a Roman province 120 Emperor Hadrian ordered wall to be built to mark Roman territory of Britain in north 254 St. Alban beheaded, became first Britain Christian martyr 290 Carausius rebelled against Roman Empire, took control of Britain and North Gaul