Ibsen started thinking about the play around May 1878, although he did not begin its first draft until a year later, having reflected on the themes and characters in the intervening period (he visualised its protagonist, Nora, for instance, as having approached him one day wearing "a blue woollen dress").[12] He outlined his conception of the play as a "modern tragedy" in a note written in Rome on 19 October 1878.[13] "A woman cannot be herself in modern society," he argues, since it is "an exclusively male society, with laws made by men and with prosecutors and judges who assess feminine conduct from a masculine standpoint."[3]