When was the English astronomer many years before which Albert Einstein once attempted a steady-state model of the expanding universe born? 
Cormac O'Raifeartaigh:  A solid-state physicist by training, he is best known for several contributions to the study of the history and philosophy of 20th century science, including the discovery that Albert Einstein once attempted a steady-state model of the expanding universe, many years before Fred Hoyle Fred Hoyle: Sir Fred Hoyle FRS (24 June 1915 – 20 August 2001) was an English astronomer who formulated the theory of stellar nucleosynthesis.
24 June 1915