› added 6 years ago

195

TIL the oldest D20 dice was uncovered in Egypt and dates back around 30 BC

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9YQBp TIL fragrances are allowed to withhold chemical ingredients, which include those that disrupt sperm production, accumulate in breast milk, and effect everyone around the user, among other effects
6EnK8 TIL that mapmakers used to plant fictitious streets in their maps, so that if a person copied their map, they could point out the replication of the fake street to prove copyright infringement.
xGW0 TIL the median lethal dose (LD50) of marijuana is estimated (at the low end) at 1:20,000. This means a person would have to smoke around 15,000 pounds of marijuana in about 15 minutes to die from it.
GAvBj TIL Amazon used to manufacture "dash buttons" where if you press the button (which can be mounted anywhere) the product the button is linked to is automatically ordered
pPmZ TIL that PB&J sandwiches were originally considered a delicacy, only enjoyed by those of the upper class.