Another strong influence on nursing was the Institution of Protestant Deaconesses at Kaiserswerth, Germany, which Nightingale had attended before going to the Crimea.
Hal lain yang sangat berpengaruh dalam bidang keperawatan adalah keberadaan Institut Diakones Protestan di Kaiserswerth, Jerman, tempat Nightingale menuntut ilmu sebelum pergi ke Krim.