The French Navy launched the world's first ocean-going ironclad warship, named La Gloire, at Toulon in southern France. Weighing 5,630 tons, the wooden hull structure was sheathed in iron plates. La Gloire carried 38 guns and a crew of 570 and was powered with both steam and sail. Two sister ships were built in 1860 and 1861. (By John Osborne)