Science on the 2nd of August 1870 in history

Science

Date	Type	Text
02 Aug 1870 Tower Subway	science	Tower Subway (technology) Official opening of the Tower Subway beneath the River Thames in London, first use of the cylindrical wrought iron tunnelling shield devised by Peter W. Barlow and James Henry Greathead and of a permanent tunnel lining of cast iron segments.	0

1st August 1870 3rd August 1870

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Science on the 2nd of August 1870 in history

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