Complex sentence: The Old Fashioned, by various accounts developed during the 19th century, is an IBA Official Cocktail, and also one of six basic drinks listed in David A. Embury's "The Fine Art of Mixing Drinks".
Split into simpler sentences: The Old Fashioned, by various accounts developed during the 19th century, is an IBA Official Cocktail. It is also one of six basic drinks listed in David A. Embury's "The Fine Art of Mixing Drinks".