1863—1863: Opening of state institution for criminally insane at Broadmoor, England
10 Jan 1863—10 Jan 1863: First section of the London Underground Railway opens
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1864
1864—1864: A man-powered submarine, 'Hunley' sank a Federal steam ship USS Housatonic at the entrance to Charleston harbour in 1864 - the first recorded successful attack by a submarine on a surface ship
11 Mar 1864—11 Mar 1864: The Great Sheffield Flood - over 250 died when a new dam broke while it was being filled for the first time
20 Aug 1864—20 Aug 1864: Red Cross established - Twelve nations sign the First Geneva Convention
8 Dec 1864—8 Dec 1864: Clifton Suspension Bridge over the River Avon officially opened