Columbus: In his diary entry for 21 October 1492, Columbus reported killing and skinning a 'serpent' measuring almost 5 ft long that he had seen entering a lake on the Bahamian island which he later dubbed Isabela. Another of these 'serpents', of similar size, was killed at a different lake on that same island a day later, this time by Martin Alonso Pinzon - the captain of one of Columbus's ships, the Pinta.
5'....Got eastern diamondbacks that big around here.
How does this support you? Snakes get much bigger than 5 feet all over the world.
A nation of sheep will beget a government of wolves.
― Edward R. Murrow