Question

What is a pinhole camera? How do we know that these devices existed before the nineteenth century?

Answer 1

A pinhole camera has a light-tight box and when light goes through it, an image appears. We know these existed before the nineteenth century because there have been drawings found from Leonardo da Vinci.

Answer 2

are you in FLVS photography ?

sounds like were both in the same class :)
maybe we could help each other out ?