Inventions and Discoveries
| Inventions/Discovery | Discoverer/Inventor | County | Year |
| Geographical | |||
| America | Christopher Columbus | Italy | 1492 |
| Sea route to India (Via the Cape of Good Hope) | Vasco-de-Gama | Portugal | 1498 |
| Sandwich Islands (Now called Hawaiian Island | Captain Cook | England | 1770 |
| North Pole (Explored) | Robert Peary | U.S.A. | 1909 |
| South Pole (Explored) | Amundsen | Norway | 1911 |
| Solar System Planetary Motion | Copernicus Kepler |
Poland Germany |
1540 1609 |
| Chemistry & Physics | |||
| Atom Bomb | Rutherford | England | 1939 |
| Electrical Battery | Volta | Italy | 1800 |
| Crescograph | J.C. Bose | India | - |
| Crystal Dynamics | C.V. Raman | India | 1928 |
| Discovery of Oxygen | J.B. Priestley | England | 1774 |
| Dynamite | Alfred Nobel | Sweden | 1862 |
| Genetic Code | Dr. Hargovind Khurana | India | 1968 |
| Incandescent Bulb | Edison | U.S.A. | 1860 |
| Laws of Gravitation | Newton | England | 1687 |
| Lightning Conductor | Benjamin Franklin | U.S.A. | 1759 |
| Motorcar Manufacture | Henry Ford | U.S.A. | - |
| Micro Film | Dr. Fredric | Germany | - |
| Printing for the blind | Louis Braille | France | 1829 |
| Photography | L. Daguerre | France | 1837 |
| Photography (Colored) | Gabriel Lippmann | U.S.A. | 1857 |
| Photography (Roll Film) | George Eastman | U.S.A. | 1888 |
| Quantum Theory | Max Planck | Germany | 1901 |
| Radio-activity of Uranium | Henri Becquerel | France | 1896 |
| Radium | Madame Curie | Poland | 1899 |
| Sputniks (Artificial Earth Satellite) | Russian Scientists | Russia | 1957 |
| Theory of Relativity | A. Einstein | U.S.A. | 1905 |
| Telegraph Code | Samuel Morse | U.S.A. | 1832 |
| Theory of Evolution | Charles Darwin | England | 1859 |
| Telephone | Graham Bell | U.S.A. | 1876 |
| Wireless (Radio) | G. Marconi | Italy | 1896 |
| X-ray | W.K. Roentgen | Germany | 1895 |
| Mechanical | |||
| Aeroplane | Wright Brothers (Wilbur Wright and Orville Wright) | U.S.A. | 1903 |
| Alcohol thermometer | Fahrenheit | Germany | 1709 |
| Bicycle | Macmillan | Scotland | 1842 |
| Dynamo | Michael Faraday | England | 1831 |
| Diesel Engine | Rudolf Diesel | Germany | 1897 |
| Engine (Railway) | Stephenson | England | 1814 |
| Fountain Pen | Waterman | U.S.A. | 1884 |
| Gramophone | Edison | U.S.A. | 1877 |
| Locomotive Power Steam (Principle of Steam Engine) | James Watt | Scotland | 1764 |
| Microscope | Z. Jansen | Netherlands | 1590 |
| Power-loom | Cartwright | England | 1785 |
| Printing Press | Gutenberg | Germany | 1450 |
| Pneumatic Tyres | Dunlop | Ireland | 1488 |
| Revolver | Colt | U.S.A. | 1835 |
| Sewing Machine | Elias Howe | U.S.A. | 1846 |
| Thermometer | Fahrenheit | Germany | 1714 |
| Transistor | W. Shockley | England | 1958 |
| Typewriter | Soles | U.S.A. | 1868 |
| Television | J.L. Baird | U.S.A. | 1944 |
| Telescope | Galileo | Italy | 1609 |
| Telstar | U.S. Scientists | U.S.A. | 1962 |
| Vaccination (Smallpox) | Edward Jenner | England | 1796 |