The sloop that revolutionized the Royal Navy
Venomous, but non-aggressive, aquatic reptiles
The animal with the misfortune to have a characteristic of the legendary unicorn
Advanced engineering based on ancient science
Author of the first major strategic analysis of sea power
A doomed attempt to transit the Northwest Passage
A unique waterway built too late
The US Senator immortalized for his work on behalf of the US merchant marine and its merchant mariners