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 | This page in a nutshell: Timescales that may affect content in Wikipedia. |
Timescales that may affect content in Wikipedia come from external and internal factors:
| Years | Period |
|---|---|
| 0 | WP:NOTNEWS |
| 1 | WP:RECENTISM |
| 2 | WP:SECONDARY SOURCE[1] |
| 10 | Small business lifespan[2] |
| 15 | Large public company lifespan[3] |
| 20 | Patent |
| 40 | Declassification[4] |
| 80 | Human life expectancy[5] |
| 115 | Copyright term[6] |
The longevity of internal factors:
See also
editNotes
edit- ^ Wikipedia:Identifying and using primary sources#Secondary sources for notability
- ^ 51% of small businesses are less than 10 years old [1]
- ^ Average S&P 500 company lifespan [2]
- ^ of primary sources. The actual term depends on several factors. US various: 10, 25, 50, 75, UK various: Twenty-year rule Thirty-year rule
- ^ WP:BLP
- ^ The actual term depends on several factors. In this hypothetical example an author creates their works at age 35 and lives for 80 years (human life expectancy), for actual details see WP:COPYOTHERS and
Expansion of U.S. copyright term. This worked example shows how the term varies over time for an author that creates their work at age 35 and lives for 70 years. - ^ Average link lifespan of ~100 days [3]
