By Zach Koons The 25-year-old won her historic medal as a part of the 800-meter freestyle relay. View the original article to see embedded media. Katie Ledecky became the most decorated woman in world swimming championships history Wednesday, marking just the latest accomplishment in her unparalleled career. Ledecky earned her 21st career world swimming championships medal Wednesday in Budapest, a gold as a member of the 800-meter freestyle relay. Ledecky clocked the second-fastest split in history–a 1:53.67–and the best of her career to lead the team comprised of Olympian Leah Smith and teena…