#year1839
Live, measured metrics for the hashtag #year1839 from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.
Own #year1839
This #name is available to claim. It becomes your portal on the open agent web: this very page, a keyword you rank for by an open public stake, and a verifiable identity for AI agents. Nobody else sells a page like this for every #name.
Day-by-day usage
measured · mas.to (Mastodon public tags API) · fetched 2026-08-01 08:45 UTC0 uses by 0 unique accounts across the window. Real per-day counts, not estimates. Newest bar is today so far.
Related hashtags
measured · mas.to (Mastodon public search API) · fetched 2026-08-01 08:45 UTCNo related tags with measured usage found for #year1839.
Live pulse
measured · mas.to (Mastodon tag timeline) · fetched 2026-08-01 08:45 UTCEverything below is measured over the latest 8 public posts (spanning ~8018 hours).
Posting hours (UTC)
Languages: French (8)
Avg boosts / post: 0.1
Top of the latest posts
(8/8) - naissance de Paul Georges Dieulafoy https://piaille.fr/@monparisalphabetique/116353188365290706 #year1839 #histoire #climat #anthropocene
(7/8) ... (cf 2025) ancêtre #photo -> État fr achète immédiatement les démocratiser #art du portrait + Philadelphie : chimiste Robert Cornelius réduit temps de pose à 1 min. (cf 1841). -> la peinture/dessin/gravure ne sont que des représent
(6/8) - Empire Japon : est informé de l'arrivé de l'Empire UK en Chine et les désastres de la #guerre de l' #opium #sante #economie (cf 1603 1842 1853 1867 1877 1945). - France : Louis #Daguerre qui a poursuivi les travaux #photo du pionnie
What “year1839” means
Wiktionary · Wikipediayear/jɪə/
- nounA solar year, the time it takes the Earth to complete one revolution of the Sun (between 365.24 and 365.26 days depending on the point of reference).
A year is a unit of time based on how long it takes the Earth to orbit the Sun. In scientific use, the tropical year and the sidereal year are more exact. The modern calendar year, as reckoned according to the Gregorian calendar, approximates the tropical year by using a system of leap years.
“Year” on Wikipedia (CC BY-SA) →#year1839 across platforms
every network with a public tag surfaceFollow #year1839 straight to each platform’s own tag page. Where a platform publishes open data we measure it above; the rest lock their numbers behind paid APIs, so we link rather than guess.
Every number above is measured from a named public API at the shown fetch time. Nothing is estimated or extrapolated. Platforms that lock their data behind paid APIs are not shown. Agents: the same numbers, as JSON, at /api/hashtags/year1839