An Early Start to the Pinhole
A Pinhole camera is any light tight container with an aperture (hole) and a shutter (something to cover the hole.
Interest in perspective and optics during the Renaissance is what led to the first necessary discovery for the pinhole camera: the camera obscura. Leonardo De Vinci described the camera obscura very clearly as early as the 16th century. (Alternative Processes)
A camera obscura is a dark chamber, container or room with a singular entry point of light. Once your eyes have adjusted, the outside will appear on the wall upside down. You can see how this would be useful for artists to trace and have an accurate perspective.
Create a camera obscura right now out of your own room!