Complex sentence: By 1990, students at Eufaula High had begun pressuring school officials to allow them to hold integrated proms, and the first such was held on Saturday, May 18,1991 without incident.
Split into simpler sentences: By 1990, students at Eufaula High had begun pressuring school officials to allow integrated proms. The first one was held on Saturday, May 18,1991 without incident.