 The turn to the concept of “realization” also leads to a shift in how Windelband approaches the problem of science classification. In 1894, Windelband had thought of the nomothetic and idiographic sciences as two fundamental yet disjointed and even incommensurable approaches to seeking knowledge of the word: “Law and event persist next to each other as the last, incommensurable factors of our representation of the world” (1894: 160). But in 1904, he claims that the concept of realization provides a common, unified basis for the natural and the historical sciences (1904a: 163).