Complex sentence: Ebenezer Skiff was appointed by Congress as the first Gay Head Lighthouse keeper and, in early November, 1799, the light was officially illuminated for the first time as an aide to navigation.
Split into simpler sentences: Ebenezer Skiff was appointed by Congress as the first Gay Head Lighthouse Keeper. In early November, 1799, the light was officially illuminated for the first time as an aide to navigation.