Mary Ann Nichols is murdered. She is the first of Jack the Ripper's confirmed victims.

Mary Ann Nichols, known as Polly Nichols, was the first canonical victim of the unidentified serial killer known as Jack the Ripper, who is believed to have murdered and mutilated at least five women in and around the Whitechapel district of London from late August to early November 1888.

Jack the Ripper was an unidentified serial killer who was active in and around the impoverished Whitechapel district of London, England, in 1888. In both criminal case files and the contemporaneous journalistic accounts, the killer was also called the Whitechapel Murderer and Leather Apron.