1953 AD
DNA double-helix model
Genética y biotecnología · ADN · Biología estructural
Watson and Crick proposed a double-helix model drawing, among other work, on Rosalind Franklin’s and Maurice Wilkins’s X-ray diffraction data. This entry recognises a network of evidence and contested credit, not an isolated two-person discovery.
Precision, calendar, and review
- Start
- year · no uncertainty qualifier in this record
- 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: point event.
Sources
- www.genome.gov (opens in a new tab)
Source provenance and scope
- Publication date
- Pending verification: the source could not be accessed
- 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.