| 400,000 BC | Stone Age man at Clacton |
| 2,000 BC | Springfield Cursus |
10
43 | Camulodunum (Colchester) founded Romans
take Camulodunum |
| 60 | Boudicca attacks Colchester |
| 654 | St
Peters on the Wall, Bradwell-on-Sea, founded |
| 894 | Battle of Benfleet |
| 991 | Battle of Maldon |
| 1016 | Battle of Ashingdon |
| 1042 | Harold Godwin becomes Earl of Essex |
| 1070 | Rayleigh Castle built |
| 1076 | William I builds fortress at Colchester |
| 1104 | Dunmow
Flitch tradition begins |
| 1130-50 | Hedingham Castle built |
| 1136 | Knights Templar at Cressing |
| 1157 | Henry II at Colchester |
| 1231 | Hadleigh Castle
built |
| 1348 | Black Death |
| 1381 | Peasants' revolt |
| 1553-58 | 73 Essex Protestants executed by Mary I |
| 1561 | Elizabeth I travels through Essex |
| 1588 | Elizabeth I addresses the troops at Tilbury |
| 1619 | The Mayflower leaves Essex for America |
| 1645-7 | Mathew Hopkins executes 74 ‘witches’ |
| 1648 | The Siege of Colchester |
| 1682 | Tilbury Fort rebuilt |
| 1695 | 1st turnpike in Essex set up at Mountnessing |
| 1705 | Dick Turpin born at Hempstead |
| 1722 | Daniel Defoe’s tours through Essex |
| 1808-10 | Harwich Redoubt Fort and Martello Towers built on Essex coast |
| 1819 | Public lighting in Chelmsford and Colchester |
| 1884 | An earthquake |
| 1898 | Marconi’s 1st radio factory opens in Chelmsford |
| 1947 | Harlow New Town |
| 1949 | Basildon New Town |
| 1953 | The Great Flood |
| 1962 | Bradwell Power Station opens |
| 1965 | Greater London absorbs adjacent Essex parishes |
| 1969 | Stansted airport’s first terminal building opens |
| 1974 | Local Government Reorganisation |
| 1987 | The Hurricane |
| 1988 | Southend and Thurrock become Unitary Authorities |