
Though shinobi proper, as specially trained spies and mercenaries, appeared in the 15th century during the Sengoku period, antecedents may have existed as early as the 12th century. Their covert methods of waging irregular warfare were deemed dishonorable and beneath the honor of the samurai. The functions of a ninja included espionage, deception, and surprise attacks. Volume six, 1817.Ī ninja ( 忍者, Japanese pronunciation: ) or shinobi ( 忍び, ) was a covert agent or mercenary in feudal Japan. Drawing of the archetypical ninja from a series of sketches by Hokusai.
