Complex sentence: The second of those temblors caused the new chimney hiding George's remains to partially collapse, and in early March, 1812, a neighborhood dog retrieved the skull of George and deposited it in open view in a roadway.
Split into simpler sentences: The second of those temblors caused the chimney hiding George's remains to partially collapse. In early March 1812, a neighborhood dog retrieved the man's skull and deposited it in open view in a roadway.