The term 'Bygone Era' refers to a period of time in the PAST. The crossword solutions for this term are 'PAST' (4 letters), 'OLDEN' (5 letters), 'THEN' (4 letters), 'YORE' (4 letters), and 'PROHIBITION' (11 letters). 'PAST' and 'THEN' refer to a specific point in time, while 'OLDEN' and 'YORE' are more general terms for a period of time in the PAST. 'PROHIBITION' is a specific event that occurred in the United States from 1920 to 1933, during which the sale, manufacture, and transportation of alcohol was illegal.