In the late 1880s the university engaged in a rapid building spree. Holden Observatory (1887) was followed by two Romanesque Revival buildings – von Ranke Library (1889), now Tolley Humanities Building, and Crouse College (1889). Together with the Hall of Languages, these first buildings formed the basis for the "Old Row," a grouping which, along with its companion Lawn, established one of Syracuse's most enduring images. The emphatically linear organization of these buildings along the brow of the hill follows a tradition of American campus planning which dates to the construction of the "Yale Row" in the 1790s. At Syracuse, "The Old Row" continued to provide the framework for growth well into the twentieth century.