Did Europeans ever trade telescopes to the Native Americans? Did they ever attempt to do so?
Edit: changing this to any kind of eye aids. Telescopes, spyglass, binoculars, monocles, magnifying glasses, etc. And yes the time is actually 1608 onwards. Since we need a end time too, I picked the arbitrary year of 1850.
Did they also warn them not to point it directly at the sun? Or maybe did they give them solar filters too? (using a telescope on the sun will instantly fry your eye, as in, melt it. This is where pirate eyepatches originally came from when someone forgot to apply the solar filter.)