Competition ZENITH

Hello Friends, There was lot of buzz regarding publishing PDF of History notes, there you are. As you have already prepared History from the notes which we had published earlier but this time our team is providing you the best History notes under one roof. So admire our effort by liking us !!! Click Here For Action Like Us For Facebook

Scroll Down For PDF Download INVENTION YEAR INVENTOR PLACE Aeroplane 1903 Wright Brothers U.S. Air Conditioning 1911 Willis Carrier U.S. Atom (nuclear model) 1911 Ernest Rutherford England Arc Lamp 1879 C.F. Brush Cleveland Bacteria 1683 Anton van Leeuwenhoek The Netherlands Barometer 1644 E. Torricelli Italy Ballpoint Pen 1888 John J. Loud U.S. Bicycle 1839 A K Macmillan Scotland Bicycle Tyre 1888 John Boyd Dunlop Scotland Braille 1829 Louis Braille France Bifocal Lens 1780 Benjamin Franklin U.S. Calculating Machine 1614 John Napier Scotland Camera (Hand Held) 1888 George Eastman U.S. Cells 1665 Robert Hooke England Centigrade Scale...