 Rosati-Kain became the first high school in the St. Louis area to integrate, enrolling five African-American students in 1946.Rosati-Kain has changed greatly over the past 100 years, morphing from a typical all-female finishing school to become a college preparatory high school for girls.The 2011-12 school year marked the 100th anniversary of Rosati-Kain, and the institution held a year-long Centennial Celebration at that time.