Complex sentence: In 1804, Candolle published his "Essai sur les propriétés médicales des plantes" and was granted a doctor of medicine degree by the medical faculty of Paris.
Split into simpler sentences: In 1804, Candolle published his "Essai sur les propriétés médicales des plantes". That same year, Candolle was granted a doctor of medicine degree by the medical faculty of Paris.