The Ōtsu incident: Tsarevich Nicholas Alexandrovich of Imperial Russia (later Nicholas II) suffers a critical head injury during a sword attack by Japanese policeman Tsuda Sanzō. He is rescued by Prince George of Greece and Denmark.
The Ōtsu incident (Japanese: 大津事件, Hepburn: Ōtsu Jiken) was an unsuccessful assassination attempt on Nicholas Alexandrovich, Tsesarevich of Russia (later Emperor Nicholas II of Russia) on 11 May [O.S. 29 April] 1891, during his visit to Japan as part of his eastern journey.