Images

The Zeppelin airship L31, flown by the Imperial German Navy, and the dreadnought Ostfriesland, 1915. Zeppelins were used by the navy as reconnaissance and patrol vessels during the First World War (1914-18). Imperial War Museums, London.

The interior of a Zeppelin airship hangar in Maubeuge, northern France, photographed in November 1918. The hangar had been used during the First World War (1914-18). Imperial War Museums, London.

A typical control gondola of a Zeppelin airship during the First World War (1914-18). The gondola was suspended below the hull of the airship and contained two steering mechanisms, one for altitude and the other for lateral movement. Imperial...

A Zeppelin airship entering its hangar, 1916. Imperial War Museums, London.

A First World War (1914-18) Zeppelin airship, likely L50, leaving its hangar. During the war, Zeppelins were used by the German Army and Navy for reconnaissance and to bomb targets in enemy territory. Imperial War Museums, London.

A 1906 photograph of Leon Trotsky (1879-1940), a key member of the Petrograd Soviet, awaiting trial following the failed Russian Revolution of 1905.

A photograph of a meeting of the Petrograd Soviet (workers' council) in 1917.

This 1795 painting depicts the famous naval battle of the Glorious First of June (1794). In this battle, the British navy, under the command of Admiral Richard Howe defeated the French navy during the Revolutionary Wars. This painting captures...

A May 1917 photograph of Russian Menshevik revolutionaries in exile in Stockholm. Left to Right: Pavel Axelrod, Julius Martov and Alexander Martinov.

A 1914 photograph of the Russian revolutionary Vladimir Lenin (1870-1924). Lenin led the Bolshevik faction of socialists in pre-revolution Russia and then seized power in November 1917, becoming head of the Soviet state.