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Inventions & discoveries
4,360 inventions and discoveries
| Invention or discovery | Date | Inventor or discoverer | Type |
|---|---|---|---|
| NGC 3622 | April 6, 1793 | William Herschel | spiral galaxy |
| NGC 4034 | April 6, 1793 | William Herschel | elliptical galaxy |
| NGC 4120 | April 6, 1793 | William Herschel | spiral galaxy |
| NGC 3961 | April 7, 1793 | William Herschel | spiral galaxy |
| NGC 3182 | April 8, 1793 | William Herschel | lenticular galaxy |
| NGC 3206 | April 8, 1793 | William Herschel | spiral galaxy |
| NGC 3220 | April 8, 1793 | William Herschel | spiral galaxy |
| NGC 3238 | April 8, 1793 | William Herschel | lenticular galaxy |
| NGC 3286 | April 8, 1793 | William Herschel | elliptical galaxy |
| NGC 3408 | April 8, 1793 | William Herschel | radio galaxy |
| NGC 3440 | April 8, 1793 | William Herschel | spiral galaxy |
| NGC 3488 | April 8, 1793 | William Herschel | spiral galaxy |
| NGC 3517-1 | April 8, 1793 | William Herschel | spiral galaxy |
| NGC 3530 | April 8, 1793 | William Herschel | lenticular galaxy |
| NGC 3613 | April 8, 1793 | William Herschel | elliptical galaxy |
| NGC 3674 | April 8, 1793 | William Herschel | lenticular galaxy |
| NGC 3407 | April 9, 1793 | William Herschel | lenticular galaxy |
| NGC 3435 | April 9, 1793 | William Herschel | spiral galaxy |
| NGC 3470 | April 9, 1793 | William Herschel | spiral galaxy |
| NGC 3671 | April 9, 1793 | William Herschel | lenticular galaxy |
| Quadrans Muralis | 1795 | Jérôme Lalande | former constellation |
| Smallpox vaccine | 1798 | Edward Jenner | vaccine type |
| NGC 1634 | December 9, 1798 | William Herschel | elliptical galaxy |
| NGC 1284 | December 10, 1798 | William Herschel | lenticular galaxy |
| NGC 2421 | January 30, 1799 | William Herschel | open cluster |
| NGC 1331 | December 19, 1799 | William Herschel | elliptical galaxy |
| NGC 1362 | December 19, 1799 | William Herschel | lenticular galaxy |
| Niobium | 1801 | Charles Hatchett | lithophile element |
| NGC 2938 | April 2, 1801 | William Herschel | spiral galaxy |
| NGC 2977 | April 2, 1801 | William Herschel | spiral galaxy |
| NGC 3061 | April 2, 1801 | William Herschel | spiral galaxy |
| NGC 3144 | April 2, 1801 | William Herschel | spiral galaxy |
| NGC 3155 | April 2, 1801 | William Herschel | spiral galaxy |
| NGC 3197 | April 2, 1801 | William Herschel | spiral galaxy |
| NGC 3329 | April 2, 1801 | William Herschel | spiral galaxy |
| NGC 3500 | April 2, 1801 | William Herschel | spiral galaxy |
| NGC 3752 | April 2, 1801 | William Herschel | spiral galaxy |
| NGC 3735 | December 7, 1801 | William Herschel | spiral galaxy |
| NGC 3057 | September 26, 1802 | William Herschel | spiral galaxy |
| NGC 3212 | September 26, 1802 | William Herschel | spiral galaxy |
| NGC 3215 | September 26, 1802 | William Herschel | spiral galaxy |
| NGC 2629 | September 30, 1802 | William Herschel | lenticular galaxy |
| NGC 2641 | September 30, 1802 | William Herschel | lenticular galaxy |
| NGC 2650 | September 30, 1802 | William Herschel | spiral galaxy |
| Palladium | 1803 | William Hyde Wollaston | chemical element |
| Rhodium | 1803 | William Hyde Wollaston | chemical element |
| Barium | 1808 | Humphry Davy | lithophile element |
| Iodine | 1811 | Bernard Courtois | lithophile element |
| Cadmium | 1817 | Karl Samuel Leberecht Hermann | chemical element |
| Anixia | 1819 | Elias Magnus Fries | taxon |
| Venturia inaequalis | 1819 | Elias Magnus Fries | taxon |
| (ε, δ)-definition of limit | 1820 | Karl Weierstraß | definition |
| Fractional derivative | 1823 | — | — |
| Rawaki Island | February 23, 1824 | Phoenix | reef island |
| NGC 2202 | 1825 | Friedrich Georg Wilhelm von Struve | star cluster |
| NGC 629 | 1825 | Friedrich Georg Wilhelm von Struve | asterism |
| NGC 4178 | April 11, 1825 | John Frederick William Herschel | spiral galaxy |
| NGC 305 | October 29, 1825 | John Frederick William Herschel | asterism |
| NGC 1727 | 1826 | James Dunlop | H II region |
| NGC 1870 | 1826 | James Dunlop | open cluster |