Michael Phelps is an American former competitive swimmer. He is the most celebrated swimmer and the most decorated Olympian in the history of Olympics. Thanks to his unwavering determination and rock-solid focus, Phelps went on to make history in the world of swimming. Phelps has created a whopping 39 world records—29 in individual events and 11 in group events—to become the first and only swimmer to do so. Additionally, he has also created the record for being the only Olympian with most number of Olympic gold medals (23), only Olympian with 13 gold medals in individual events, and only Olympian to win eight gold medals in a single Olympic event. Interestingly, Michael Phelps was initially afraid to put his face under the water. He not only overcame this fear but also challenged the attention-deficit hyperactivity disorder (ADHD), which he was facing as a child, to become a master at what he loved doing—swimming! Apart from his back-to-back victories and undefeated feats, his will to better his own records and ability to popularize the sport of swimming distinguish him from his contemporaries and colleagues. After retiring from the sport following the 2012 Olympics, Michael made a comeback in 2014. He then took part at the 2016 Summer Olympics, his fifth Olympics, before announcing his second retirement in August 2016. At the time of his retirement, he had won more medals than 161 countries!