hosted the Art Treasures Exhibition, the largest art exhibition ever held in the United Kingdom. A purpose-built iron and glass building was constructed at a cost of £38,000 to house the 16,000 exhibits. The gardens were also chosen as a site for the Royal Jubilee Exhibition of 1887, celebrating Queen Victoria's 50-year reign. The exhibition ran for more than six months and was attended by more than 4.75 million visitors. The gardens were converted into an entertainment resort in 1907, and hosted the first speedway meeting in Greater Manchester on 16 June 1928. There was also greyhound racing from 1930, and an athletics track. The complex was demolished in the late 1980s, and all that remains is the entrance gates, close to what is now the White City Retail Park. The gates were designated a Grade II listed structure in 1987. The gates are not in their original position but were dismantled and turned through ninety degrees when the White City Retail Park was built. Industrialisation The arrival of the Manchester Ship Canal in 1894, and the subsequent development of the Trafford Park industrial estate in the north of the town – the first planned industrial estate in the world – had a substantial effect on Stretford's growth. The population in 1891 was 21,751, but by 1901 it had increased by 40% to 30,436 as people were drawn to the town by the promise of work in the new industries at Trafford Park. During the Second World War Trafford Park was largely turned over to the production of matériel, including the Avro Manchester heavy bomber, and the Rolls-Royce Merlin engines used to power both the Spitfire and the Lancaster. That resulted in Stretford being the target for heavy bombing, particularly during the Manchester Blitz of 1940. On the nights of 22/23 and 23/24 December 1940 alone, 124 incendiaries and 120 high-explosive bombs fell on the town, killing 73 people and injuring many more. Among the buildings damaged or destroyed during the war were Manchester United's Old Trafford football ground, All Saints' Church, St Hilda's Church, and the children's library in King Street. Smoke generators were set up in the north of the town close to Trafford Park in an effort to hide it from enemy aircraft, and 11,900 children were evacuated to safer areas in Lancashire, Cheshire, Derbyshire, and Staffordshire, along with their teachers and supervisors. A memorial to those