World Boxing Organization (as they did with several established champions in the lower weight divisions), the WBO sanctioned a fight between two relatively unknown fighters, Francesco Damiani (winner of the super heavyweight silver medal at the 1984 Summer Olympics) and Johnny DuPlooy, to determine the inaugural holder of its own heavyweight title in 1989. All other sanctioning bodies of boxing recognized the then-undefeated Mike Tyson as the undisputed heavyweight champion. Damiani, meanwhile, went on to become the first WBO heavyweight champion. At heavyweight, especially in the United States, the organization initially struggled to gain credibility as a major sanctioning body, with WBO heavyweight
Boxing in the United States sport as way of increasing moral and physical character. John L. Sullivan became the first American heavyweight champion in 1882 under bare knuckle boxing rules and again in 1892 becoming the first gloved era. He was defeated by James Corbett, often referred to as the father of modern boxing due to his innovative scientific technique, in 1892. Jack Johnson was the first African American heavyweight champion. Ring magazine was founded in the mid 1900s, and it began listing of championships and winners. The National Boxing Association changed its name in 1962 and became the World Boxing Association. The new organization