Over 150 distilleries were around in New England in the mid 1600’s, and molasses was already being imported to British Colonies in America from Jamaica. Colonists made their variations to the beverages they used to have with whisky, by switching it to rum and adding it to hot beverages like noggs and toddies.
It is said that the name "Dark and Stormy" originated when a sailor held up a cloudy drink and said it was the “colour of a cloud that only a fool or a dead man would sail under”. Nowadays the Dark N' Stormy is a widespread drink, extremely popular in pretty much everywhere, for instance in the US East Coast. The drink is so popular that any bartender in the US or Europe would be happy to make AND drink a (or several) Dark N' Stormy...
The original Navy rum ration began unofficially in 1655 when the daily liquor ration for serving sailors
was switched from brandy to rum. The change was officially recognised in Naval regulations in 1731, and
in 1750 Vice-Admiral Edward Vernon of the West Indies fleet issued a General Order establishing the
daily rum ration.