Births on March 4

Rafaela Ottiano, Italian-American actress (d. 1942)

Rafaela Ottiano (4 March 1888 – 15 August 1942) was an Italian-American stage and film actress.

16 May

Electric power transmission
Nikola Tesla delivers a lecture describing the equipment which will allow efficient generation and use of alternating currents to transmit electric power over long distances.
31 Aug

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

Kodak
George Eastman registers the trademark Kodak and receives a patent for his camera that uses roll film.
8 Sep

Annie Chapman
In London, the body of Jack the Ripper's second murder victim, Annie Chapman, is found.
30 Sep

Elizabeth Stride
Jack the Ripper kills his third and fourth victims, Elizabeth Stride and Catherine Eddowes.