Short answers, pulled from the story.
Roman general Agricola ordered the construction of a fort named Mamucium on a sandstone bluff near the confluence of the rivers Medlock and Irwell in 79 AD. This military outpost protected Roman interests in Deva Victrix and Eboracum while establishing a civilian settlement that has remained continuously populated since that time.
Crowds estimated between 30,000 and 150,000 gathered in St Peter's Square for what became known as the Peterloo Massacre when soldiers charged the peaceful protest. The attack killed at least 18 people and injured more than 700.
An estimated 500 tons of high explosives and over 37,000 incendiary bombs were dropped on the city during these air raids. These attacks destroyed much of the historic city centre including 165 warehouses, 200 business premises, and 150 offices while killing 376 civilians.
On the 15th of June 1996, the Provisional Irish Republican Army detonated a lorry bomb in Corporation Street that injured over 200 people and broke windows up to 1 mile away. This explosion became one of the most expensive man-made disasters in history with final insurance payouts exceeding £400 million.
The 2021 United Kingdom census recorded Manchester's population at 552,000, representing an increase of 9.7% from the 2011 census. The data showed that 56.8% of the population was White while 43.2% identified as ethnic minorities.