The Telegraph
The Invention of the Telegraph by Joseph Henry in 1831 led to the invention of the phone.
The Walkman led to the invention of the iPod.
the invention that led up to the gas mask was a cloth in front of your face
tooth phone is the sragest invention tooth phone is the sragest invention tooth phone is the sragest invention tooth phone is the sragest invention
metronome
The scientific finding that led to the invention of the first camera was that light could catalyze a chemical reaction.
the type wrighter
CD's
the growth of cotton plantations and the invention of the cotton gin.
well johnny appleseed
poo and pee craped snooze
The hydrophone :)