At Scutari, she became known as the “lady with the lamp” from her nightly ex- cursions through the wards to review the care of the soldiers (Audain, 1998). To prove the value of the work she and the nurses were doing, Nightingale instituted a system of record keeping and adapted a statistical reporting method known as the polar area diagram (Audain, 2007; O’Connor & Robertson, 2003) or Cock’s Comb model, to analyze the data she so rigorously collected (Small, 1998). Thus, Nightin- gale was the first nurse to collect and analyze evidence that her methods were working.