| Year | Event |
|---|
| 1321 | Warrington becomes the first paved town in Lancashire |
| 1526 | Boteler Grammar School founded |
| 1643 | Siege of Warrington |
| 1690 | Henry Booth, Lord Delamere, created Earl of Warrington |
| 1757 | The 'Warrington Advisor' becomes Lancashire's first newspaper |
| 1755-57 | The first commercial canal in Britain - Sankey-St Helens - is cut |
| 1761 | G & J Distillery |
| 1779 | The first Sunday School in the county, St James' Sunday School, is opened |
| 1787 | The first Boulton & Watt steam engine to be used in Lancashire is installed at Latchford cotton mill |
| 1830 | The first Total Abstinence Society in Britain is formed in Warrington |
| 1832 | Warrington becomes a Parliamentary Borough |
| 1832 | The first MP in the town, E.G. Hornby, is returned to Parliament as a Liberal candidate |
| 1834 | First Walking Day |
| 1847 | The first Mayor takes office as the town becomes a Borough |
| 1848 | The first public library in the country is opened in Warrington, supporting the town's museum |
| 1864 | The first ever Lancashire county cricket match is played in Warrington |
| 1897 | Victoria Park opened |
| 1899 | Cromwell's statue erected |
| 1900 | Warrington becomes a County Borough |
| 1902 | First Tram |
| 1920 | Warrington's first women magistrates and town councillor take office |
| 1925 | War memorial unveiled |
| 1934 | Kingsway Bridge opened |
| 1939 | RAF Padgate opened |
| 1940-45 | RAF Burtonwood - Largest USAF Base in Europe |
| 1945 | Walton Gardens opened to the public |
| 1946 | Bruche Police Training Centre opened |
| 1957 | Wilderspool Bridge opened |
| 1963 | Thelwall Viaduct opened |
| 1968 | Hilden, Germany Twin Town |
| 1972 | Outline Plan of New Town published, first houses built at Longbarn |
| 1974 | Warrington becomes part of Cheshire |
| 1974 | New Market opened |
| 1990 | First Business Connections |
| 1998 | On air in September, 107.2 Wire FM promises a mix of great music, local news, sport and information for Warrington people |