Early 19th century bow corkscrew multitool found in a river by mudlarker @myordinarytreasure
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Bow Corkscrew
Category: History
Zoomable version (https://www.easyzoom.com/imageaccess/613e6664b7db43769ade1405ff36ac2c)
Source (https://eastofnowhere.co/pages/north-america-1911)
Via (https://reddit.com/r/dataisbeautiful/comments/z4u9yr/oc_the_bedrock_geology_of_north_america/)
If you enjoy this, you may also enjoy (https://en.wikipedia.org/wiki/Terrain_cartography)
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Roman multitool
Happy Indigenous People’s Day!
What indigenous land do you live on? Find out here (https://native-land.ca)
Learn more about Indigenous People’s Day (https://en.wikipedia.org/wiki/Indigenous_Peoples%27_Day)
Columbus was a lost, racist, enslaving, incompetent, cruel, tyrannical murderer who was disgraced even in his own time.
Learn more about Columbus (https://theoatmeal.com/comics/columbus_day)
The US didn’t even start celebrating Columbus Day nationally until 1934 after political lobbying.
Learn more about why the United States celebrates Columbus Day (http://www.npr.org/sections/codeswitch/2013/10/14/232120128/how-columbus-sailed-into-u-s-history-thanks-to-italians)
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Artemis
Source (https://reddit.com/r/space/comments/x0d1ci/a_few_pics_of_nasas_artemis_rocket_scheduled_to/)
Originally scheduled to launch today but just delayed a few minutes ago.
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The decline of unions
“…the results suggest that the Norse cut down these trees within a few months of each other in 1021.”
“That precision was possible thanks in part to the IntCal20 calibration curve, which is the first radiocarbon calibration curve to break down changes in atmospheric carbon levels into single-year increments.”
“The Norse may have been at the site slightly earlier, but they were definitely there and cutting down trees by 1021.”
(https://arstechnica.com/science/2021/10/vikings-were-in-north-america-by-1021-ce/)
In 1960, L’Anse aux Meadows was discovered “with the assumed historical age of ca AD 1000”.
In the 1970s and 1980s, charcoal was used for radiocarbon dating.
In 2016, “progress in high-precision calibrations of radiocarbon dates has led to evaluations of earlier research” and concluded that “the calibrated age range of L’Anse aux Meadows is AD 975–1020.”
With this new research, we now have an even more definitive date.
Credit: Elizabeth C. Turner
“Fossil discovered in northwestern Canada could rewrite the early history of animal life — but some palaeontologists are not convinced it’s real.”
“Most major groups of animals — including arthropods, molluscs and worms — first appear in the fossil record during the Cambrian explosion, 541 million years ago. But according to a paper published today [28 July 2021] in Nature, sponge fossils from northwestern Canada could be 350 million years older, significantly pushing back the date of Earth’s earliest-known animals.”
“It’s such a big claim that you really have to eliminate all the other possibilities.”
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Goat Canyon Trestle Bridge
San Diego County, CA.
The world’s largest all-wood trestle.
Built in 1933. Discontinued 2008.
(https://en.wikipedia.org/wiki/Goat_Canyon_Trestle)
(https://reddit.com/r/AbandonedPorn/comments/kzjgpe/16_mile_hike_to_an_abandoned_train_track_bridge)
“The door to the dining area of the Alcobaça Monastery in Portugal was made narrow so that monks who got too fat were forced to go into fasting.”
danelabonte 