Images

Confederate General Pierre Gustave Toutant Beauregard, the hero of Petersburg, who held off overwhelming Union troops, buying time for Robert E. Lee. Retouched version of a photograph by Mathew Brady, c. 1860. National Archives and Records...

General George B. McClellan, first Commanding General of the United States Army in the American Civil War. Retouched version of a photograph by Mathew Brady, 1861. National Archives and Records Administration, Washington, D.C.

George Meade, Union general during the American Civil War, best known for his decisive victory at the Battle of Gettysburg in July 1863. Retouched version of a photograph from the Brady-Handy Photograph Collection, c. 1855-65. Library of...

A photograph of a captured German contact mine, a weapon which was developed during the First World War (1914-18). (Imperial War Museums)

A June 1918 photograph of US destroyers painted with dazzle camouflage to disguise their form. This type of camouflage was first developed in Britain during the First World War (1914-18). (Imperial War Museums) -

A 1918 photograph showing a sailor on a British torpedo boat destroyer preparing depth charges, a weapon developed during the First World War (1914-18). Imperial War Museums, London.

A July 1918 photograph of a British Sopwith Cuckoo dropping a torpedo, a weapon developed during the First World War (1914-18). (Imperial War Museums)

A photograph showing the interior of a Mills Bomb hand grenade, a weapon developed during the First World War (1914-18). When the ring was pulled and the hand lever released, the spring-like striker hit the percussion cap below which then...

A photograph of a German soldier wearing a flamethrower, a weapon developed during the First World War (1914-18). (Imperial War Museums)

During World War II (1939-1945), Nazi Germany under Adolf Hitler (rule 1933-1945) carried out the Holocaust, a systematic, state-directed genocide that resulted in the murder of approximately six million Jews, alongside millions of other...