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- 19th century
The 19th century
1,725 inventions and discoveries
| Invention or discovery | Date | Inventor or discoverer | Type |
|---|---|---|---|
| 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 |
| NGC 1922 | 1826 | John Frederick William Herschel | star cluster |
| NGC 2091 | 1826 | John Frederick William Herschel | star cluster |
| NGC 2092 | 1826 | John Frederick William Herschel | star cluster |
| NGC 2098 | 1826 | John Frederick William Herschel | star cluster |
| NGC 2960 | March 4, 1826 | John Frederick William Herschel | spiral galaxy |
| NGC 3869 | March 10, 1826 | John Frederick William Herschel | spiral galaxy |
| NGC 2698 | March 11, 1826 | John Frederick William Herschel | lenticular galaxy |
| NGC 3330 | April 29, 1826 | James Dunlop | star cluster |
| NGC 2671 | May 1826 | James Dunlop | open cluster |
| NGC 2972 | May 9, 1826 | James Dunlop | star cluster |
| NGC 2658 | May 28, 1826 | James Dunlop | open cluster |
| NGC 2982 | June 24, 1826 | James Dunlop | open cluster |
| NGC 346 | August 1826 | James Dunlop | star cluster |
| NGC 395 | August 1826 | James Dunlop | galaxy |
| NGC 465 | August 1826 | James Dunlop | open cluster |
| NGC 1743 | August 3, 1826 | James Dunlop | star cluster |
| NGC 1770 | August 3, 1826 | James Dunlop | H II region |
| NGC 1858 | August 3, 1826 | James Dunlop | open cluster |
| NGC 1926 | August 3, 1826 | James Dunlop | star cluster |
| NGC 2069 | August 3, 1826 | James Dunlop | galaxy |
| NGC 1836 | September 5, 1826 | John Frederick William Herschel | star cluster |
| NGC 1712 | September 24, 1826 | James Dunlop | stellar association |
| NGC 1722 | September 24, 1826 | James Dunlop | H II region |
| NGC 1795 | September 24, 1826 | James Dunlop | star cluster |
| NGC 1810 | September 24, 1826 | James Dunlop | star cluster |
| NGC 1826 | September 24, 1826 | James Dunlop | star cluster |
| NGC 1869 | September 24, 1826 | James Dunlop | stellar association |