1989 – Shinkai 6500 Submersible – (Japanese)

1989 – Shinkai 6500 Submersible. In Japanese, shinkai means deep sea. Aptly named, the Shinkai 6500 (しんかい) is a manned research submersible that can dive up to a depth of 6,500 m. It was completed in 1989 and until 2012 it had the greatest depth range of any manned research vehicle in the world. The …