|Centuries:||18th century - 19th century - 20th century|
|Decades:||1860s 1870s 1880s - 1890s - 1900s 1910s 1920s|
|Years:||1890 1891 1892 1893 1894 1895 1896 1897 1898 1899|
- January 4 - President Benjamin Harrison issues a proclamation of amnesty to all polygamists who had entered into that relationship before November 1, 1890.
- May 23 - First ordinances (Baptism for the Dead) performed in the Salt Lake Temple.
- May 24 - First endowments and sealings performed in the Salt Lake Temple.