User:Elizium23/Years sourcing

Here's the bottom line: articles based on years (1976) or days of the year (April 18) are not exempt from WP:V and so any uncited assertions are subject to challenge and removal. Please cite a reliable secondary source to support each entry in these articles. It doesn't matter whether all the rest of the entries are uncited. The guideline changed 4 years ago. We must work to bring these pages into compliance.
 * Guidelines include WP:DOYCITE and WP:DOYSTYLE
 * Consensus was forged in 2017 to change the guideline, per Wikipedia talk:WikiProject Days of the year/Archive 13


 * 1) 1859 in the United Kingdom and its element Mansfield Smith-Cumming - date of birth was uncited, so I had to find it in a book (already in bibliography, not in references.)