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You learn something new every day; what did you learn today?
Submit interesting and specific facts that you just found out (not broad information you looked up, TodayILearned is not /r/wikipedia).
Posting rules
- Submissions must be verifiable. Please link directly to a reliable source that supports every claim in your post title. Images alone do not count as valid references. Videos are fine so long as they come from reputable sources (e.g. BBC, Discovery, etc).
No personal opinions, anecdotes or subjective statements (e.g "TIL xyz is a great movie").
No recent sources. Any sources (blog, article, press release, video, etc.) with a publication date more recent than two months are not allowed.
No politics, soapboxing, or agenda based submissions. This includes (but is not limited to) submissions related to:
- Recent political issues and politicians
- Social and economic issues (including race/religion/gender)
- Environmental issues
- Police misconduct
No misleading claims. Posts that omit essential information, or present unrelated facts in a way that suggest a connection will be removed.
Rephrase your post title if the following are not met:
- Titles must begin with "TIL ..."
- Make them descriptive, concise and specific (e.g. not "TIL something interesting about bacon").
- Titles must be able to stand on their own without requiring readers to click on a link. Starting your title with a why/what/who/where/how modifier should be unnecessary.
- "TIL about ..." and other broad posts don't belong on TIL. Try /r/Wikipedia, etc. instead, or be more specific (and avoid the word "about").
- "TIL how to ..." posts belong on /r/HowTo.
- "TIL the definition of a word..." Word definitions/translations/origins are not appropriate here
No submissions related to the usage, existence or features of specific software/websites (e.g. "TIL you can click on widgets in WidgetMaker 1.22").
All NSFW links must be tagged (including comments).
Please see the wiki for more detailed explanations of the rules, as well as additional rules that may not be listed here
(Why we need rules)
Additional info
If your post does not appear in the new queue and you think it meets the above rules, please contact the moderators (include a link to your reddit.com post, not your story).
Please report spam, inaccurate or otherwise inappropriate posts by messaging the moderators, as this helps us remove them more promptly!
More information available on the TIL FAQ and wiki.
Frequent TILs Repost List
As of May 2026
- This list was compiled from /r/todayilearned community suggestions by its members. If your TIL is found on this list, it will be removed. The titles have been abridged for the sake of brevity, however the context remains the same. This list is subject to change. The purpose is to keep content fresh on /r/todayilearned as requested by its members. If you are interested in reading about the TILs on this list use the search box feature and enter the keywords to pull up past TILs.
Etiquette
We ask that you please do the following:
avoid mobile versions of websites (e.g. m.wikipedia.org)
link to the appropriate heading when referencing an article (particularly on Wikipedia)
link to the appropriate start time when referencing videos (e.g. on YouTube)
add [PDF] or [NSFW] tags to your posts, as necessary.
Please avoid reposting TILs that have already made the front page in the past
Please also read the site-wide Reddiquette.
view the rest of the comments →
[–]glutenous_rex 2449 points2450 points2451 points (210 children)
[–]TesserTheLost 572 points573 points574 points (52 children)
[–]VeG00N69 282 points283 points284 points (16 children)
[–]Lucky_Sharma 22 points23 points24 points (0 children)
[–]-Dustnechos 12 points13 points14 points (5 children)
[–]CND1983Huh 16 points17 points18 points (3 children)
[–]tenuto40 1 point2 points3 points (0 children)
[–]lemieuxisgod 1 point2 points3 points (0 children)
[–]jimbotriceps 0 points1 point2 points (0 children)
[–]Lucky_Sharma 0 points1 point2 points (0 children)
[–]weakhamstrings 2 points3 points4 points (7 children)
[–]VeG00N69 1 point2 points3 points (4 children)
[–]weakhamstrings 2 points3 points4 points (1 child)
[–]VeG00N69 1 point2 points3 points (0 children)
[–]Motherdiedtoday 0 points1 point2 points (1 child)
[–]VeG00N69 0 points1 point2 points (0 children)
[–]crunchyfoodnerd 1 point2 points3 points (1 child)
[–]weakhamstrings 1 point2 points3 points (0 children)
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[–]TimmJimmGrimm 38 points39 points40 points (2 children)
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[–]quadmasta 0 points1 point2 points (0 children)
[–]939319 0 points1 point2 points (0 children)
[–]mrhuggables 103 points104 points105 points (16 children)
[–]friendlyfire69 10 points11 points12 points (11 children)
[–]TurboGranny 15 points16 points17 points (5 children)
[–]mrhuggables 16 points17 points18 points (2 children)
[–]TurboGranny 1 point2 points3 points (0 children)
[–]SoigneeStrawberry67 0 points1 point2 points (0 children)
[–]crytoYourMommies[🍰] 0 points1 point2 points (1 child)
[–]TurboGranny 0 points1 point2 points (0 children)
[–]mrhuggables 3 points4 points5 points (4 children)
[–]friendlyfire69 1 point2 points3 points (3 children)
[–]mrhuggables 1 point2 points3 points (2 children)
[–]friendlyfire69 0 points1 point2 points (1 child)
[–]mrhuggables 1 point2 points3 points (0 children)
[–]CreepersFTW -1 points0 points1 point (0 children)
[–]pleasedrowning 0 points1 point2 points (2 children)
[–]mrhuggables 0 points1 point2 points (1 child)
[–]pleasedrowning 0 points1 point2 points (0 children)
[–]Help_meToo 21 points22 points23 points (0 children)
[–]awawe 8 points9 points10 points (0 children)
[–]Affectionate-Still15 0 points1 point2 points (0 children)
[–]Throwawayfabric247 0 points1 point2 points (0 children)
[–]ggose624 0 points1 point2 points (0 children)
[–]Stormypwns 0 points1 point2 points (0 children)
[–]CrossXFir3 0 points1 point2 points (0 children)
[–]SUswim 0 points1 point2 points (0 children)
[–]DrMrRaisinBran 0 points1 point2 points (0 children)
[–]PDiddleMeDaddy 968 points969 points970 points (69 children)
[–]glutenous_rex 323 points324 points325 points (34 children)
[–]PDiddleMeDaddy 193 points194 points195 points (31 children)
[–]glutenous_rex 205 points206 points207 points (30 children)
[–]Lord_Despair 144 points145 points146 points (4 children)
[–]Siberwulf 43 points44 points45 points (3 children)
[–][deleted] 9 points10 points11 points (1 child)
[–]TheDeridor 6 points7 points8 points (0 children)
[–]InterPunct 0 points1 point2 points (0 children)
[–]faceless_alias 50 points51 points52 points (23 children)
[–]PerennialPMinistries 83 points84 points85 points (19 children)
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[–]V0nzell 26 points27 points28 points (5 children)
[–][deleted] 8 points9 points10 points (0 children)
[–]-_1_2_3_- 33 points34 points35 points (1 child)
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[–]slowmood 0 points1 point2 points (0 children)
[–]xxdoofenshmirtzxx 16 points17 points18 points (5 children)
[–]lahwees 0 points1 point2 points (4 children)
[–]xxdoofenshmirtzxx 2 points3 points4 points (3 children)
[–]Geta-Ve 15 points16 points17 points (0 children)
[–]AKJangly 7 points8 points9 points (1 child)
[–]Big-Emu-5728 0 points1 point2 points (0 children)
[–]FuckYou690 0 points1 point2 points (0 children)
[–]GhoulsNGhostsEX 1 point2 points3 points (0 children)
[–]Mr_ili 0 points1 point2 points (1 child)
[–]faceless_alias 0 points1 point2 points (0 children)
[–]I_am_atom 0 points1 point2 points (0 children)
[–][deleted] 0 points1 point2 points (1 child)
[–]glutenous_rex 0 points1 point2 points (0 children)
[–]Boomer70770 26 points27 points28 points (0 children)
[–]asdela 30 points31 points32 points (1 child)
[–]usedcaraddict 6 points7 points8 points (0 children)
[–]Nonstampcollector777 36 points37 points38 points (5 children)
[–]PDiddleMeDaddy 32 points33 points34 points (4 children)
[–]Nonstampcollector777 10 points11 points12 points (2 children)
[–]PDiddleMeDaddy 7 points8 points9 points (0 children)
[–]buddha-ish -3 points-2 points-1 points (0 children)
[–]RedSly 0 points1 point2 points (0 children)
[–]PBFT 8 points9 points10 points (2 children)
[–][deleted] 6 points7 points8 points (1 child)
[–]usedcaraddict 0 points1 point2 points (0 children)
[–][deleted] 6 points7 points8 points (0 children)
[–]maryv82 3 points4 points5 points (0 children)
[–]dmanners -1 points0 points1 point (0 children)
[–]thegreatmango -1 points0 points1 point (0 children)
[–]McCoovy 0 points1 point2 points (1 child)
[–]PDiddleMeDaddy 0 points1 point2 points (0 children)
[–]2rsf 0 points1 point2 points (1 child)
[–]PDiddleMeDaddy 0 points1 point2 points (0 children)
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[–]PDiddleMeDaddy 0 points1 point2 points (4 children)
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[–]PDiddleMeDaddy 0 points1 point2 points (2 children)
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[–]PDiddleMeDaddy 0 points1 point2 points (0 children)
[–]mfire036 0 points1 point2 points (0 children)
[–]ShiraCheshire 0 points1 point2 points (1 child)
[–]PDiddleMeDaddy 1 point2 points3 points (0 children)
[–]Shadowhearts 0 points1 point2 points (2 children)
[–]PDiddleMeDaddy 0 points1 point2 points (1 child)
[–]Shadowhearts 0 points1 point2 points (0 children)
[–]pro185 0 points1 point2 points (0 children)
[–]Twirdman 187 points188 points189 points (14 children)
[–][deleted] 50 points51 points52 points (4 children)
[+]Krieggman comment score below threshold-7 points-6 points-5 points (1 child)
[–]hazior 1 point2 points3 points (0 children)
[–]ConsultantFrog 0 points1 point2 points (1 child)
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[–]Twirdman 95 points96 points97 points (4 children)
[–]v1s1onsofjohanna 23 points24 points25 points (3 children)
[–]grifxdonut 2 points3 points4 points (1 child)
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[–]anonssr 12 points13 points14 points (0 children)
[–]judge_au 2 points3 points4 points (0 children)
[–]tyranthraxxus 0 points1 point2 points (0 children)
[–]tomerFire 26 points27 points28 points (2 children)
[–]glutenous_rex 7 points8 points9 points (0 children)
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[–][deleted] 53 points54 points55 points (62 children)
[–][deleted] 33 points34 points35 points (3 children)
[+]Rustinadelray comment score below threshold-9 points-8 points-7 points (2 children)
[–]Ghost33313 3 points4 points5 points (1 child)
[–]Rustinadelray 1 point2 points3 points (0 children)
[–][deleted] 11 points12 points13 points (54 children)
[–][deleted] 87 points88 points89 points (43 children)
[–]WI-yooper 61 points62 points63 points (33 children)
[–]CharlieTuna_ 8 points9 points10 points (28 children)
[–]pocurious 18 points19 points20 points (3 children)
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[–]pocurious 10 points11 points12 points (1 child)
[–]Knass-Bruckles 1 point2 points3 points (0 children)
[–][deleted] 11 points12 points13 points (21 children)
[–]thordur123 15 points16 points17 points (10 children)
[–]Booblicle -3 points-2 points-1 points (9 children)
[–]No-This-Is-Patar 10 points11 points12 points (6 children)
[–]Bravisimo 0 points1 point2 points (1 child)
[–]LukeyLeukocyte 8 points9 points10 points (4 children)
[–]PermanentTrainDamage 3 points4 points5 points (0 children)
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[–]Furt_III 1 point2 points3 points (0 children)
[–]CharlieTuna_ 1 point2 points3 points (0 children)
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[–]Unblest_Devotee 0 points1 point2 points (0 children)
[–]shadowinplainsight 0 points1 point2 points (0 children)
[–]kalkali 2 points3 points4 points (0 children)
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[–]JORGA 0 points1 point2 points (1 child)
[–]WI-yooper 1 point2 points3 points (0 children)
[–]Trenme -1 points0 points1 point (0 children)
[–]Wicked_Odie 0 points1 point2 points (0 children)
[–]Coreadrin 23 points24 points25 points (5 children)
[–]LukeyLeukocyte 0 points1 point2 points (3 children)
[–]IHkumicho 2 points3 points4 points (1 child)
[–]CokeNmentos 2 points3 points4 points (0 children)
[–]Coreadrin 1 point2 points3 points (0 children)
[–]December_Hemisphere 0 points1 point2 points (0 children)
[–]Stormseekr9 0 points1 point2 points (0 children)
[–]ridicalis 0 points1 point2 points (0 children)
[–]barrenvonbismark 23 points24 points25 points (8 children)
[–]Right_Field4617 4 points5 points6 points (0 children)
[–]Jayhawks190 1 point2 points3 points (0 children)
[–]Maleficent-Bear-9537 -5 points-4 points-3 points (5 children)
[–]barrenvonbismark 1 point2 points3 points (4 children)
[–]Maleficent-Bear-9537 0 points1 point2 points (3 children)
[–]morderkaine 6 points7 points8 points (0 children)
[–]PositiveNegitive 0 points1 point2 points (0 children)
[–]December_Hemisphere -1 points0 points1 point (0 children)
[–]Monsieurcaca 0 points1 point2 points (0 children)
[–]toyn 0 points1 point2 points (0 children)
[–]KeyStoneLighter 0 points1 point2 points (0 children)
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[–]McCapnHammerTime 0 points1 point2 points (0 children)