Intellectual history (also the history of ideas) is the study of the history of human thought and of intellectuals, people who conceptualize, discuss, write about, and concern themselves with ideas. The investigative premise of intellectual history is that ideas do not develop in isolation from the thinkers who conceptualize and apply those ideas; thus the intellectual historian studies ideas in two contexts: (i) as abstract propositions for critical application; and (ii) in concrete terms of culture, life, and history.[1]
As a field of intellectual enquiry, the history of ideas emerged from the European disciplines of Kulturgeschichte (Cultural History) and Geistesgeschichte (Intellectual History) from which historians might develop a global intellectual history that shows the parallels and the interrelations in the history of critical thinking in every society.[2][3] Likewise, the history of reading, and the history of the book, about the material aspects of book production (design, manufacture, distribution) developed from the history of ideas.
The concerns of intellectual history are the intelligentsia and the critical study of the ideas expressed in the texts produced by intellectuals; therein the difference between intellectual history from other forms of cultural history that study visual and non-verbal forms of evidence. In the production of knowledge, the concept of the intellectual as a political citizen of public society dates from the 19th century, and identifies a man or a woman who is professionally engaged with critical thinking that is applicable to improving society. Nonetheless, anyone who explored his or her thoughts on paper can be the subject of an intellectual history.