What day of the week was June 15, 1888?

The day of the week June 15th, 1888 fell on was a Friday.

Frederick III the German Emperor (b. 1831) died on this day in 1888.

Crown Prince Wilhelm becomes Kaiser Wilhelm II; he will be the last Emperor of the German Empire. Due to the death of his predecessors Wilhelm I and Frederick III the 1888 is the Year of the Three Emperors.