The history of the telescope | Royal Museums Greenwich
Curious Questions: How did Galileo take the credit for inventing the telescope despite being beaten to it by two Dutchmen and an Englisman? - Country Life
Molecular Expressions: Science, Optics and You - Timeline - Hans Lippershey
Who really invented the telescope? | BBC Science Focus Magazine
Did Galileo invent the telescope?
Galileo Didn't Invent The Telescope... Sorry. - YouTube
This Month in Astronomical History: The Invention of the Telescope | American Astronomical Society