Question: When was the English astronomer many years before which Albert Einstein once attempted a steady-state model of the expanding universe born? 
Sentence (from "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
Relevant evidence: Yes