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When was the first self-propelled armoured vehicle built in England?

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armoured vehicle A British Warrior mechanized combat vehicle serving in NATO's Stabilization Force in Bosnia and Herzegovina, 1997.

The first self-propelled armoured vehicle was built in England in 1900, when the company John Fowler & Company armoured one of its steam traction engines for use in the South African (Boer) War.1

While earlier concepts for protected vehicles existed—including a patent for an armed, wheeled, armoured vehicle based on a steam tractor filed by James Cowen in 1855—the 1900 steam traction engine represents the first practical, self-propelled application of this technology. Shortly thereafter, in 1902, a vehicle that was both armed and armoured was constructed to the order of Vickers, Sons and Maxim Ltd. and exhibited in London.1