Simplify the following text for a Grade 11 native English-speaking person.
Original: Pavarotti sang his international recital dÃ but at William Jewell College in Liberty , Missouri , on 1 February 1973 , as part of the college 's Fine Arts Program , now known as the Harriman-Jewell Series .
Simplified: He made his international recital dÃ but at William Jewell College in Liberty , Missouri in 1973 as part of the collegeâ s Fine Arts Program , now known as the Harriman-Jewell Series .