Russell M. Nelson, president of The Church of Jesus Christ of Latter-day Saints, turned 100 on September 9, making him the oldest leader of a major world religion and the first centenarian to hold this position in his church's history. He has been a significant figure in the church since joining the Quorum of the Twelve Apostles in 1984 and has served as president since 2018, during which he has implemented notable reforms. Utah Governor Spencer Cox declared September 9 as 'President Russell M. Nelson Day' in honor of his leadership. Nelson's advanced age has not hindered his dynamic leadership style, which includes overhauling church practices and policies. The church commemorated this milestone with a special broadcast celebrating his life and teachings. Nelson's enduring influence is highlighted by his commitment to service and spiritual authority, as noted by various religious scholars.