Education for Global Citizenship (GCE) is a key issue in current educational debates. Throughout this study, through a review of the literature, a historical journey is made through the past, present and future lines of GCE. This theoretical journey covers the evolution of GCE from the 1960s to the present to allow us to gain perspective on how it has become increasingly important in this global and interconnected society. The future directions guide a Critical Global Citizenship in which the important thing is not only to raise awareness and promote action, but also to be able to critically understand social reality and existing inequalities in order to transform the world into a better place, free of oppression and injustice.