The history of underwater exploration is traced from the days of Alexander the Great to the development of the aqualung in 1942, the first bathyscaphe in 1948, the diving saucer in 1959, through to a new fleet of modern deep sea submersibles. A photographic essay traces man's endeavors and advances in undersea exploration.
![Image Star Blazers [Space Battleship Yamato] 2199](http://i0.wp.com/image.tmdb.org/t/p/w300/kP0qdJDIV2kHF2CTw8l5RrGyZYE.jpg?resize=300,450 "Image Star Blazers [Space Battleship Yamato] 2199")
