And thanks Jim and Adrian for your great research that really pushes the date back for firearms to the early 1700s and still earlier for general use. That pretty much agrees with Corrado's estimate.
Nice screw Fernando! Apparently the British government even marked trees with the broad arrow in North America which were suitable for masts and claimed for government use. No doubt indicating to the colonists which ones they would get the most enjoyment out of cutting down for firewood.
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