Complex sentence: Magickal Childe functioned as a major focal point for the Neo-Pagan community in the 1970s, 1980's, and 90's and the brick and mortar store finally closed in 1999.
Split into simpler sentences: Magickal Childe functioned as a major focal point for the Neo-Pagan community in the 1970s and into the 1990's. The brick and mortar store finally closed in 1999.