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TIL that Australian aboriginal tribes have oral history and legends that accurately describe old geographic features and document the sea rise that are between 7,000 and 18,000 years old.

Read more theguardian.com

via reddit.com

KG96 TIL that the previews used to be shown at the end of a movie, which is why they are referred to as “trailers.”
LkXYp TIL that using horizontal push bars instead of regular door knobs/handles is too prevent a crowd from smashing into a door and preventing its ability to open. Apparently it's called panic hardware
Grl1 TIL during World War II, the US sent former major league baseball catcher and OSS agent Moe Berg to attend a lecture from Dr. Heisenberg. Berg was armed with a pistol and had orders to shoot Dr. Heisenberg if his lecture indicated that Germany was close to completing an atomic bomb.
LkB0m TIL that according to DuPont, the name "Nylon" was originally called "No-Run," but was modified to "Nuron" to avoid making an unjustified claim. Later it was changed to "Nilon" to make it sound less like medicine, and then eventually "Nylon" so that people would pronounce it properly.
Bggyb TIL we have a bone just beneath our jaw called the Hyoid bone. It's not found on anatomy skeletons because it is the only bone in the body that isn't attached to another bone.