Before the modern popularity of the concept of "
leadership", the autocratic
enlightened absolutist King
Frederick II ("the Great") of Prussia () famously portrayed himself as "the first servant of the state". The roots of the concept can be seen in much earlier texts. For instance, the Bible contains the following teaching of
Jesus Christ: Robert K. Greenleaf first popularized the phrase
servant leadership in "The Servant as Leader", an essay published in 1970. In this essay, Greenleaf explains how and why he came up with the idea of servant leadership, as well as defining a servant leader. Larry Spears, CEO of the Greenleaf Center for Servant Leadership, stated in an interview: "Greenleaf credited his reading of
Hesse's 1932 book,
Journey to the East, as the personal source of inspiration in his coining the term, 'servant-leader' in his 1970 essay, The Servant as Leader." In
Journey to the East, the main character, named Leo, is a servant just like all the others. All the servants work well together, until one day when Leo disappears. When the servants realize that things are not the same without Leo, they came to the realization that Leo was far more than a servant – he was actually their leader. Greenleaf came to the realization that a newfound leader should be someone that servants or workers can relate to. with the publication of the first
peer-reviewed servant leadership scale, and since then, over 270 peer-reviewed articles have been published across 122 academic journals. The year 2008 was a significant year in servant leadership research with the publication of two seminal papers by Sen Sendjaya, James C. Sarros, and Joseph C. Santora as well as Liden, Wayne, Zhao, and Henderson, == Greenleaf's original formulation ==