Complex sentence: The cornerstone for the society's hall, located at Bannerman Park, was laid by Governor Harvey on May 24,1845 the completed hall fell in a windstorm on September 19,1846 killing two people.
Split into simpler sentences: The cornerstone for the society's hall, located at Bannerman Park, was laid by Governor Harvey on May 24,1845. The completed hall fell in a windstorm on September 19,1846 killing two people.