The practice of "smashing" involved one student showering another with gifts: notes, chocolates, sometimes even locks of hair. When the object of the student's affections was wooed and the two of them began spending all their time together, the "aggressor" was perceived by her friends as "smashed". In the early twentieth century, "crush" gradually replaced the term "smash", and generally signified a younger girl's infatuation with an older peer. Historian Susan Van Dyne has documented an "intimate friendship" between Mary Mathers and Frona Brooks, two members of the Smith College class of 1883. Mathers and Brooks exchanged tokens of affection, relished time spent alone together, and celebrated an anniversary.