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On This Day | October 21

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2021
Lusail Stadium opened

Lusail Stadium is a football stadium in Lusail, Qatar. It is the largest stadium in Qatar and the Middle East by capacity, with a 88,966 people capacity.

1971
Clarkston explosion

The Clarkston explosion was a disaster that occurred in a row of shops on the main street of Clarkston, East Renfrewshire, Scotland. The death toll has been stated as 21 or 22. The explosion followed a build-up of gas in an underground space beneath the Clarkston Toll shops, caused by a gas main leak later ruled to have been accidental.

1966
Aberfan disaster

The Aberfan disaster was the catastrophic collapse of a colliery spoil tip. The tip had been created on a mountain slope above the Welsh village of Aberfan, near Merthyr Tydfil, and overlaid a natural spring. Heavy rain led to a build-up of water within the tip which caused it to suddenly slide downhill as a slurry, killing 116 children and 28 adults as it engulfed Pantglas Junior School and a row of houses.

1907
1907 Qaratog earthquake

The 1907 Qaratog earthquake occurred near Qaratog (Karatag) in the border area between Uzbekistan and Tajikistan, then part of the Russian Empire. The shock had an estimated surface wave magnitude of 7.4 and a maximum felt intensity of IX (Violent) on the Mercalli intensity scale. Estimates of the death toll range between 12,000 and 15,000.

1896
James Henry Greathead died

James Henry Greathead was a mechanical and civil engineer renowned for his work on the London Underground railways, Winchester Cathedral, and Liverpool overhead railway, as well as being one of the earliest proponents of the English Channel, Irish Sea and Bristol Channel tunnels. His invention is also the reason that the London Underground is colloquially named the "Tube".

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Lewisham hospital tests groundwater heat pump beneath protected park

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Keller's feature article in Foundation Drilling Magazine

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