Complex sentence: She had the front door of the Tara set restored and, after exhibit at the Atlanta History Center in 1989, lent it for permanent display at the Margaret Mitchell House and Museum in midtown Atlanta, Georgia.
Split into simpler sentences: She had the front door of the Tara set restored. After a 1989 exhibit at the Atlanta History Center, she lent it for permanent display at the Margaret Mitchell House and Museum in Midtown Atlanta, Georgia.