Premise: Ryman Auditorium (formerly Grand Ole Opry House and Union Gospel Tabernacle) is a 2,362-seat live performance venue, located at 116 5th Avenue North, in Nashville, Tennessee and is best known as the home of the "Grand Ole Opry" from 1943 to 1974. It is owned and operated by Ryman Hospitality Properties, Inc.
Hypothesis: The Grand Ole Opry was the most popular venue for country music in 1973.