Professional wrestling:

A wrestler's championship accomplishments can be central to their career, becoming a measure of their performance ability and drawing power. In general, a wrestler with multiple title reigns or an extended title reign is indicative of a wrestler's ability to maintain audience interest and/or a wrestler's ability to perform in the ring. As such, the most accomplished or decorated wrestlers tend to be revered as legends despite the predetermined nature of title reigns. American wrestler Ric Flair has had multiple world heavyweight championship reigns spanning over three decades. Japanese wrestler Último Dragón once held and defended a record 10 titles simultaneously.

Please answer a question about this article. If the question is unanswerable, say "unanswerable". What has Ric Flair accomplished?
multiple world heavyweight championship reigns spanning over three decades