[1Old Pro]

they are more like hardtack. In New England they are called "sea biscuits",[1] as they were staples aboard whaling ships.[2]

They refer to hardtack alot in "In the Heart of the Sea" a true story about The Essex whaling ship and "The Great White Whale"

[Red Badger]

Hardtack was a common food for long journeys on land as well...............