|  | Year | Event(s) | 
| 1 | 1835 | Charles Babbage invents a mechanical calculator.Englishmen, Francis Pettit Smith invents the propeller.Englishmen, Henry F. Talbot invents Calotype photography.Solymon Merrick patents the wrench.
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| 2 | 1836 | "Bridge War" between residents of Ohio City and Cleveland.Samuel Colt invented the first revolver.
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| 3 | 1837 | English schoolmaster, Rowland Hill invents the postage stamp.Martin van Buren president of the USA 1837-1841.Samuel Morse invents the telegraph.Victoria.  Ruler of England 1837-1901.  House of Hanover: Daughter of Edward, 4th son of George III; married (1840) Prince Albert of Saxe-Coburg and Gotha, who became Prince Consort.
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| 4 | 1838 | Samual Morse invents Morse Code.
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| 5 | 1839 | American, Charles Goodyear invents rubber vulcanization.American, Thaddeus Fairbanks invents platform scales.Frenchmen, Louis Daguerre and J.N. Niepce co-invent Daguerreotype photography.Kirkpatrick Macmillan invents a bicycle.Welshmen, Sir William Robert Grove conceives of the first hydrogen fuel cell.
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| 6 | 1840 | Englishmen, John Herschel invents the blueprint.
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| 7 | 1841 | John Tyler president of the USA 1841-1845.  John Tyler the first vice president to succeed to the presidency due to death of a president.Samuel Slocum patents the stapler.William H. Harrison president of the USA.  William Henry Harrison succumbed to pneumonia 1841.
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| 8 | 1842 | Joseph Dart builds the first grain elevator.Paving the streets of Cleveland, Ohio commences by laying down planks on the roads.
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| 9 | 1843 | Alexander Bain of Scotland, invents the facsimile.
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| 10 | 1844 | Englishmen, John Mercer invents mercerized cotton.
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| 11 | 1845 | American, Elias Howe invents a sewing machine.James Polk president of the USA 1845-1849.Robert William Thomson patents the first vulcanised rubber pneumatic tire.
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| 12 | 1846 | Dr. William Morton, a Massachusetts dentist, is the first to use anesthesia for tooth extraction.
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| 13 | 1847 | Hungarian, Ignaz Semmelweis invents antisceptics.Telegraph line installed between Pittsburgh and Cleveland.
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| 14 | 1849 | Street lights are installed in Cleveland.Walter Hunt invents the safety pin.Zachary Taylor president of the USA 1849-1850.  Zachary Taylor died while in office.
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| 15 | 1850 | Joel Houghton was granted the first dishwasher patent.Millard Fillmore president of the USA 1850-1853.  Millard Fillmore, vice president under Zachary Taylor, sworn in as president after Taylor's death.
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| 16 | 1851 | Isaac Singer invents a sewing machine.
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| 17 | 1853 | Franklin Pierce president of the USA 1853-1857.
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| 18 | 1854 | John Tyndall demonstrates the principles of fiber optics.
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| 19 | 1855 | Isaac Singer patents the sewing machine motor.
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| 20 | 1856 | Cleveland water system goes into operation.Louis Pasteur invents pasteurisation.
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| 21 | 1857 | George Pullman invents the Pullman Sleeping Car for train travel.James Buchanan president of the USA 1857-1861.
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| 22 | 1858 | First sewers in Cleveland. (Where did everything go prior to this?)Hamilton Smith patents the rotary washing machine.Jean Lenoir invents an internal combustion engine.
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| 23 | 1861 | Abraham Lincoln president of the USA 1861-1865.Elisha Otis patents elevator safety brakes, creating a safer elevator.Linus Yale invents the Yale lock or cylinder lock.USA Civil War begins.
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| 24 | 1862 | Alexander Parkes invents the first man-made plastic.Dr. Richard Gatling patents the machine gun.
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| 25 | 1863 | Cleveland starts home delivery of mail.
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