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The invention of the transistor is one answer. The invention of the semiconductor is another. Going further back... the invention of the valve.
Since the invention of the camera it has been used for surveillance but I don't think cameras specialized for surveillance were made until around the turn of the century. Sorry I can't be more specific.
The invention of the microprocessor
Space invaders!
1856.
Tools and Fire
SHE - subject (who is doing the action? She) GAVE - verb (what is the subject doing? Giving) THE WORLD - indirect object (to whom is the subject doing the action? The world) HER FIRST INVENTION - direct object (what is the subject giving? Invention)
The first invention is the 'Hammer'. It was discovered about 2,600,000 years ago.
When you have an invention, the first step is to get a patent for the invention.
The best invention in the world is definitely velcro
his first invention was the sespension bridge
The Apple I, a personal computer was the first invention of apple.
His first invention was the Apple lisa
The Chinese were the first to use paper as an invention.
inventing and building the world's first successful airplane and making the first controlled, powered and sustained heavier than air flight is there most significant invention.
invented the first car and named it after his daughter Mercedes