29 August 1782 was a sad day for Portsmouth. The warship Royal George sank while anchored off the town. About 900 people died including wives and children of the sailors. www.localhistories.org/portsmouth.html
On 16 August 1819 the Peterloo Massacre happened. Cavalry charged
unarmed people holding a meeting on St Peter's Fields at Manchester.
Eleven people are killed and 400 wounded. www.localhistories.org/timeline.html