The expedition found the submarines and made an important discovery.
His expedition did not make it out of the settled areas.
His first expedition made a net profit of US$4.5 million.
That spring at least 30 expeditions of tourists made the climb.
Although the expedition did make notable contributions to science, scientific research itself was not the main goal of the mission.
No pirate or military expedition would make use of such a vessel.
Every expedition which returns makes that journey easier for the next one.
His expedition made some of its most amazing discoveries here.
What's more, this expedition would make a name for him.
Another Japanese expedition returned in 1975 and made the second ascent.