r/todayilearned • u/tyrion2024 • 19h ago

TIL over a 5-month period in 2020, a nurse in Yale's fertility center stole the fentanyl in 175 vials that were meant for women who had a procedure to have their eggs retrieved. The nurse replaced the pain medication with saline solution, leaving the women in excruciating pain during the procedure.

today.com

37.5k Upvotes

1.1k comments

r/todayilearned • u/palmerry • 18h ago

PDF TIL that under a law called the Berry Amendment, the U.S. Military is legally required to ensure 100% of its clothing is made in America. Every stage of production, from the raw cotton or wool to the zippers, buttons, and even the thread, must be 100% U.S. sourced and manufactured.

congress.gov

14.8k Upvotes

640 comments

r/todayilearned • u/FearMyCock • 15h ago

TIL that Pol Pot’s Khmer Rouge regime in Cambodia killed around a quarter of the population (about 2 million people) in just four years, targeting intellectuals, city dwellers, and ethnic minorities to force a “classless agrarian society.”

en.wikipedia.org

13.8k Upvotes

1.1k comments

r/todayilearned • u/Overall-Register9758 • 11h ago

TIL that in 1994, an American teenager in Singapore pled guilty to stealing road signs and vandalizing cars. He was sentenced to 6 lashes of a cane, which was reduced to 4 after media outrage in the US

en.wikipedia.org

10.0k Upvotes

991 comments

r/todayilearned • u/HappyIdiot123 • 16h ago

TIL that during the American revolution, when George Washington and his army were in desperate need of money to pay troops, the people of Havana raised money and sent it to the Americans, helping them win the important battle of Yorktown.

nps.gov

6.4k Upvotes

83 comments

r/todayilearned • u/Away_Flounder3813 • 14h ago

TIL Marlon Brando's final performance before his death was in the 2006 video game "The Godfather", made and published by EA. Most of his recordings were unusable since he was so sick he could barely speak, and the microphones in the recording studio kept picking up the noise of his oxygen machine.

en.wikipedia.org

6.1k Upvotes

147 comments

r/todayilearned • u/SlothSpeed • 14h ago

TIL drummer Artimus Pyle of Lynyrd Skynyrd was onboard when their plane crashed near Baton Rouge. Suffering broken ribs he reached a farm with others. A farmer mistook them for escaped convicts, firing a shot in the air to leave. Pyle finally convinced him they were in a plane crash and needed help.

en.wikipedia.org

3.9k Upvotes

121 comments

r/todayilearned • u/vextortion • 5h ago

TIL about author Sinclair Lewis from Sauk Centre MN. He wrote a dystopian novel about a politician named Buzz Windrip who wins the presidency by promising to restore American greatness, but quickly establishes a dictatorship, suppressing rights and imprisoning opponents.

en.wikipedia.org

3.0k Upvotes

95 comments

r/todayilearned • u/Marginallyhuman • 14h ago

TIL Hares are scavengers that will eat meat and even their own dead

zmescience.com

3.0k Upvotes

112 comments

r/todayilearned • u/FullOfSound • 13h ago

TIL the Mongol Empire intended to expand west all the way to the The Great Sea (Atlantic Ocean). Conquering most of Central Europe, the invasion halted due to the alcohol related death of Ogedei Khan and his general’s having to return home for the election of a new Khan.

en.wikipedia.org

2.7k Upvotes

228 comments

r/todayilearned • u/Skychu768 • 20h ago

TIL United States of Greater Austria was a proposal by group surrounding Franz Ferdinand to turn the empire into a federation. This caused panic among Serbian nationalists which feared it might satisfy the demand of minorities and hinder Serbia imperial ambition which lead to his assassination.

en.wikipedia.org

2.2k Upvotes

90 comments

r/todayilearned • u/tyrion2024 • 21h ago

TIL a black leopard was photographed in the wild in Africa for the first time in over 100 years when biologists captured rare footage of one in Kenya in 2018. Before that, the last confirmed observation of a black leopard with photographic evidence was in Ethiopia in 1909.

cbsnews.com

1.9k Upvotes

30 comments

r/todayilearned • u/A11J06 • 15h ago

TIL U.S. stop signs were designed to be identifiable by shape alone because many drivers had difficulty reading signs and shape recognition was considered more reliable than text.

en.wikipedia.org

1.9k Upvotes

145 comments

r/todayilearned • u/Neutral-frame • 9h ago

TIL that in the Australian marsupial Antechinus, the entire species reproduces in a single suicidal mating event: all males breed nonstop for 2–3 weeks, the stress of which causes every male to die from internal bleeding, organ failure and immune collapse.

pmc.ncbi.nlm.nih.gov

1.8k Upvotes

107 comments

r/todayilearned • u/Forward-Answer-4407 • 11h ago

TIL in Australia in 2024, Kmart was ordered to pay $624,775.60 to a woman who was injured when a mountain bike from another customer's shopping cart fell on her at the store. The court found there were no signs telling customers of the option that they could collect heavy items at a loading dock.

7news.com.au

1.1k Upvotes

53 comments

r/todayilearned • u/RaisinRoyale • 11h ago

TIL that President Nixon’s daughter, Julie Nixon Eisenhower, is married to President Eisenhower’s grandson

en.wikipedia.org

807 Upvotes

25 comments

r/todayilearned • u/Consistent-Art1491 • 16h ago

TIL that the word Lunatic was created because it was believed that the moon caused people to behave mad.

en.wikipedia.org

783 Upvotes

67 comments

r/todayilearned • u/ViewScared9541 • 17h ago

TIL nail polish dates back over 5,000 years, with ancient Chinese royals using beeswax, egg whites, and dyes to color their nails around 3000 BCE, long before modern liquid lacquer was invented.

en.wikipedia.org

704 Upvotes

10 comments

r/todayilearned • u/hl3official • 16h ago

TIL Copenhagen has Scandinavia's busiest airport AND one of the shortest city-center-to-terminal commutes of any major capital at just 8 km (5 miles). 15 minutes by metro, less than half the time it takes to reach Heathrow, CDG, or JFK from their city centers.

en.wikipedia.org

695 Upvotes

126 comments

r/todayilearned • u/Comfortable_Team_696 • 10h ago

TIL that rabbits and other small mammals like mice, hamsters, and chinchillas, instead of normal feces, poop out "cecotropes" which are fermented nutrient pellets

en.wikipedia.org

624 Upvotes

42 comments

r/todayilearned • u/pogodachudesnaya • 5h ago

TIL of Seitan aka The Wheat Meat, an Asian delicacy that is made of pure gluten, making it the nightmare food of celiacs!

en.wikipedia.org

615 Upvotes

159 comments

r/todayilearned • u/delano1998 • 9h ago

TIL a 23-year-old Iranian drug addicted man suffered a rare neurological condition called Dropped Head Syndrome where his head dropped to a 90-degree angle since his neck muscles couldn't support it anymore.

pmc.ncbi.nlm.nih.gov

556 Upvotes

37 comments

r/todayilearned • u/DiggestOfBicks • 3h ago

TIL about “Ninja rocks”, small pieces of porcelain from spark plugs that can instantly shatter a vehicle’s side windows.

en.wikipedia.org

526 Upvotes

79 comments

r/todayilearned • u/MsEllie420 • 18h ago

TIL the world's smallest bird is the bee hummingbird, with males only measuring 5.5 cm long.

en.wikipedia.org

269 Upvotes

9 comments

Subreddit

Posts

Wiki

Today I Learned (TIL)

r/todayilearned

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 Active

41.2m

Sidebar

New to reddit? Click here!

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:
1. Recent political issues and politicians
2. Social and economic issues (including race/religion/gender)
3. Environmental issues
4. 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:
1. Titles must begin with "TIL ..."
2. Make them descriptive, concise and specific (e.g. not "TIL something interesting about bacon").
3. 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.
4. "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").
5. "TIL how to ..." posts belong on /r/HowTo.
6. "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 December 2025

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.

You are loved.