Which part of the Dark Ages? If it was the early part then I'd say a printing press, chemicals for making paper, and soap. Later parts maybe some battle maps to change the outcome of some wars.
Which part of the Dark Ages? If it was the early part then I'd say a printing press, chemicals for making paper, and soap. Later parts maybe some battle maps to change the outcome of some wars.
Which part of the Dark Ages? If it was the early part then I'd say a printing press, chemicals for making paper, and soap. Later parts maybe some battle maps to change the outcome of some wars.