 The label “collective intentionality” is fairly recent (in its current meaning, it was introduced by John Searle in his 1990 paper “Collective Intentions and Actions”). In contrast to the label, the concept is not new. The idea of collective intentionality is implied in such notions as Aristotle’s concept of koinonía (common striving), Jean-Jacque Rousseau’s collective will (volonté générale), or in notions such as the spirit of peoples and related concepts as developed in German Idealism or the Historical School of Law. Somewhat more explicit conceptions of collective intentionality can be found in early social and sociological theory  (2.1),  Phenomenology and Existential Philosophy  (2.2),  and in the works of Robin G. Collingwood and Wilfrid Sellars  (2.3).  These largely independent sources focus on key issues in the analysis of collective intentionality that persist through history into the present.