From an oar-powered prototype to the original U.S. Navy submarine, here are nine undersea vehicles that were among the first in history to take the plunge.
Source: 9 Groundbreaking Early Submarines – HISTORY
From an oar-powered prototype to the original U.S. Navy submarine, here are nine undersea vehicles that were among the first in history to take the plunge.
Source: 9 Groundbreaking Early Submarines – HISTORY
DAVE DOES HISTORY 
Leave a comment