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Matches, although primitive versions already existed, were developed in the 1600's, they were made by Robert Boyle, and used phosphorus and sulfur
In the early 1200's concave and convex
lenses were invented, this led to the invention of eye glasses and spectacles
Although nothing like today's modern submarine, and not
the first built, Leonardo da Vinci drew out a basic submarine, it was functional, and was generally a row boat that could go underwater
Along with the invention of concave and convex lenses and eyeglasses came the telescope, being invented around the 1600's, before this the microscope was already invented, being partially the inspiration for the telescope.
The first pocket watch,
(at the time called a pocket clock)
was invented around the 1400's in Italy
By: cuyler gallaher