c. 2019 CE–c. 2023 CE
COVID-19 pandemic
World history · Culture · Politics
The first cases of the novel coronavirus were detected in 2019, and WHO characterized the outbreak as a pandemic in March 2020. The crisis affected health, mobility, work, education, and supply chains worldwide, with highly unequal risks and vaccine access; the end of the international emergency in 2023 did not mean the virus had disappeared.
Precision, calendar, and review
- Start
- year · approximate
- End
- year · approximate
- Calendar and convention
- Historical-era years; the source calendar is not identified. No conversion of days is assumed.
- Year zero
- The scale goes from 1 BCE to 1 CE without year zero. Changing era names changes labels only.
- Documentary review
- Date not recorded
Reading the date: duration of a process.
Sources
- www.who.int (opens in a new tab)
Source provenance and scope
- Publication date
- Not identified in metadata; document review pending
- Bibliographic date checked
- 2026-09-23
The correspondence between this reference and individual claims has not yet been itemized.
This record is an editorial synthesis. Consult the sources to check claims and their limits. Chronological relationships alone do not establish causation.