Ferdinand Carre invented one device used for this industry. For 10 points each:
[10h] Name this good that was shipped across much of the world by Frederic Tudor, earning him the nickname of this industry’s king. Charles Morse tried to raise the price of this good by offering stocks to the mayor of New York, Robert Van Wyck.
ANSWER: ice [or frozen water; reject “water”]
[10m] Tudor’s ice empire was hurt by this bill, but nonetheless he managed to ship much of his goods to Havana. This bill, which was repealed by Macon's Bill No 2, was satirized as a cursed snapping turtle in one political cartoon.
ANSWER: Embargo Act of 1807
[10e] While the ice may have floated, many shipments of ice were sunk by these German submarine units during the World Wars. Karl Donitz started as a commander of these ships, which often traveled in so-called wolfpacks.
ANSWER: U-boats [or Unterseeboot]
<AD, Other History>