In the year 1801, several of the Mysore rockets were sent to England in the Royal Arsenal lab for R&amp;D by Col. (Later Sir) William Congreve. Roughly, 4 years later in the year 1805, Royal Arsenal came up with their first Congreve rocket only due to the Technology devised by Haider Ali and his son Tipu Sultan. These Congreve Rockets helped the British troops in the Napoleonic Wars and also in the War of 1812. Not to forget, the Battle of Baltimore in the year 1814 was won mainly due to these rockets.
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