The great man theory is an approach to the study of history popularised in the 19th century. According to it, history can be largely explained by the impact of great men, or heroes: highly influential and unique individuals who, due to their natural attributes, such as superior intellect, heroic courage, extraordinary leadership abilities or divine inspiration, have a decisive historical effect. The theory is primarily attributed to the Scottish essayist, historian and philosopher Thomas Carlyle, who gave a series of lectures on heroism in 1840, later published as On Heroes, Hero-Worship, & the Heroic in History, in which he states:
This theory is usually contrasted with people's history, which emphasises the life of the masses creating overwhelming waves of smaller events which carry leaders along with them. Another contrasting school is historical materialism.
