One key to the success of Jesuit education has been the tension between the recognizable mark of uniformity that long distinguished the methods, contents, and practices of Jesuit schools and their ability to adapt to different contexts and times. Both of the aspects could be said to have found explicit support in that unique foundational document, the Ratio Studiorum, which retained some sway up until the middle of the twentieth century despite the many variations and complexities that had arisen since early modernity. Soon after the Ratio fell into oblivion, Jesuit schools began to think about what made them distinctively Jesuit. There was a need to clarify the profile of their mission in the contemporary world. This chapter will sketch a history of Jesuit education, focusing on both the permanent and changing traits of its distinctive pedagogy.