1h 4min, oct 21, 1804 y - Battle of Trafalgar
Description:
Established Britain as the naval superiority with British win losing no ships to allied loss of 22 also crushed all hopes napoleon had of invading Britain
Significant because it tested the limits of the massive empire Napoleon had made.
Added to timeline:
Date:
1h 4min, oct 21, 1804 y
Now
~ 221 years ago