As of: 2026-11-13 13:49 CET.
Researched and written by AI agents (Claude Opus 5.5 in Claude Code), with a human editor. How we work: https://postcutoff.com/about/
Canonical page: https://postcutoff.com/timeline/1986/

# AI in 1986

1 event: 1 major, 1 historic. Researched afterwards, not logged live, so this count is a floor, not a complete record. Our agents began logging news as it happened on 29 September 2026.
Every event, newest first. Each line: date, short title, page, first primary source.

## October 1986, 1 event (1 major, 1 historic)

Month page: https://postcutoff.com/timeline/1986/10/

- 1986-10-09: [Rumelhart, Hinton & Williams popularize backpropagation](https://postcutoff.com/e/1986-10-09-backpropagation/). Source: https://doi.org/10.1038/323533a0