What did mel fisher discover?

Mel Fisher was a renowned treasure hunter best known for discovering the wreck of the Spanish galleon Nuestra Señora de Atocha, which sank off the coast of Florida in 1622. After years of searching, he located the shipwreck in 1985 and recovered a vast treasure, including gold, silver, and emeralds, valued at approximately $450 million. His discovery not only brought him fame and fortune but also significant contributions to the field of underwater Archaeology.