1) Adventurer 2) Aqualung inventor 3) Calypso II captain 4) Calypso skipper 5) Explorer 6) French conservationist 7) French underwater explorer 8) Jacques costeau 9) Jacques yves costeau 10) Scuba co-inventor 11) Undersea explorer jacques 
born 1910, French naval officer, author, and underseas explorer: developed the Aqua-Lung.