The Bogatyr class were a group of protected cruisers built for the Imperial Russian Navy. Unusually for the Russian navy, two ships of the class were built for the Baltic Fleet and two ships for the Black Sea Fleet.
Oleg in April 1918
Battle damage to cruiser Oleg inflicted at the Battle of Tsushima. Photo taken June 1905 at Manila Bay.
Protected cruisers, a type of cruising warship of the late-19th century, gained their description because an armoured deck offered protection for vital machine-spaces from fragments caused by shells exploding above them. Protected cruisers resembled armored cruisers, which had in addition a belt of armour along the sides.
The Russian protected cruiser Oleg was a Bogatyr-class protected cruiser
The protected cruiser Esmeralda, built by the shipyard of the Armstrong House for the Chilean Navy, was the first warship of its kind in the world.
Hertha on a visit to the United States in 1909
Dutch protected cruiser Noord-Brabant as an accommodation ship