Espionage, or the act of intelligence gathering, is as old as civilisation itself. In Ancient Rome, plain-clothes military scouts known as ‘speculatores’ infiltrated enemy territories to gather information. And in Tudor England, elite ‘spymasters’ used networks of informers to defend the interests of the crown. Espionage took on a new urgency in the 20th century, … Continue reading 8 of the Most Notorious Spies in History