, "The Way to Eden" ) * The inconclusive Battle of Donatu V is fought between Federation and Klingon forces near Sherman's Planet. (TOS: "The Trouble with Tribbles" ) * Emony Dax visits Earth to judge a gymnastics competition at the University of Mississippi, where she meets Leonard McCoy. She told him he "had the hands of a surgeon." (DS9: "Trials and Tribble-ations") Afterward, he began his career in medicine. (TAS: "The Pirates of Orion")