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World’s first…….
By Hina Ojha
World’s first telephone
World’s first A.C.
World’s first mouse
World’s first calculator
World’s first mobile phone
World’s first motorcycle
World’s first bulb
World’s first car
World’s first plane
World’s first washing machine
World’s first camera
World’s first pen
World’s first train engine
World’s first music player
World’s first bicycle
World’s first laptop
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