r/todayilearned
Today I Learned (TIL)
Founded December 2008 · Public — anyone can post
You learn something new every day; what did you learn today? Submit interesting and specific facts about something that you just found out here.
Members
41,671,757
41.7M
Online now
—
not captured in the last snapshot
Posts per day
34.7
from the last 100 posts, spanning 2.9 days
Comments per post
—
no sample yet
Growth · 7d
+0.0%
+9.1K members · ≈7d
Growth · 30d
+0.2%
+69K members · ≈30d
Promo tolerance
—
not assessed yet
Last post
Sep 25
sampled Sep 25
Distinct posters
74%
of the last 100 posts
Tracking since Jul 31 · growth spans are the real distance between snapshots, not rounded windows. Posts/day is measured from the community’s own newest posts on Reddit, not from what Prowlo happens to crawl.
Member growth
Similar by content
Communities that discuss what r/todayilearned discusses.
🔥🔥A place to share interesting content that is extraordinary and fascinating! 🔥🔥👀 -- Please review the sub rules before posting. -- New accounts can participate in the comments section right away, but to submit a new post, your account must be at least 7 days old with at least 50 comment karma.
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r/todayilearned — frequently asked
How many members does r/todayilearned have?
r/todayilearned has 41,671,757 members as of our most recent crawl on Sep 25. Prowlo re-checks tracked communities on a rolling schedule, so this figure moves rather than sitting frozen at whatever it was when a scraper last ran.
Is r/todayilearned growing?
Over the last ≈30 days r/todayilearned changed by +0.2% — a gain of 69K members. We compare against the nearest snapshot we actually hold and state the real span rather than rounding it to a clean "30 days".
How active is r/todayilearned?
Around 34.7 posts per day, measured from the newest 100 posts on Reddit, which span 2.9 days. Posting rate matters more than subscriber count when you're deciding where to spend your time — it determines how long your comment stays visible.
When was r/todayilearned created?
r/todayilearned was founded in December 2008 and is a public — anyone can post community. Age matters: an older community with steady growth has survived Reddit's moderation churn; a young one with a spike may not.
Who posts in r/todayilearned?
Of the last 100 posts we sampled, 74% came from distinct accounts; the newest was published Sep 25. A low share means a feed dominated by a handful of accounts (bots, mods, or one prolific poster) rather than a community.
Can I promote my product in r/todayilearned?
We don't have a promo-tolerance read for r/todayilearned yet. Default to the safe approach: read the sidebar rules, contribute in threads where you gain nothing, and mention your product only when it is the honest answer to someone's question.
How do I monitor r/todayilearned for mentions?
Hit Watch on this page. Prowlo starts crawling r/todayilearned into your Dataset — every new post indexed and embedded, searchable semantically, queryable by your AI agent over MCP, and able to trigger keyword alerts in Slack. Prowlo is read-only; it never posts on your behalf.
Can my AI agent read r/todayilearned's stats?
Yes. Everything on this page is one MCP tool call away: catalog_get_subreddit returns r/todayilearned's members, growth, promo tolerance and similar communities as typed JSON — free, no credits. Connect your agent to api.prowlo.com/mcp and it can vet the community and start watching it in the same conversation.
Read-only · Human-in-the-loop
Prowlo never posts for you
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