Year of the Three Emperors

Wilhelm I reigned 18 January 1871 – 9 March 1888.
Friedrich III reigned for only 99 days: 9 March – 15 June 1888.
Wilhelm II reigned 15 June 1888 – 9 November 1918.

The Year of the Three Emperors, or the Year of the Three Kaisers (German: Dreikaiserjahr), refers to the year 1888 during the German Empire in German history. The year is considered to have memorable significance because of the deaths of two German Emperors, or Kaisers, leading to a rapid succession of three monarchs within one year. The three different emperors who ruled over Germany during this year were Wilhelm I, Friedrich III and Wilhelm II. The mnemonic "drei Achten, drei Kaiser" (English: "three eights, three emperors") is still used today in Germany by children and adults alike to memorize the year in question.