Global map of fresh yellowfin tuna in 2022. Multiple links pointing to the United States of America are shown.

Yellowfin tuna:

Caught in tropical waters.

Processed in Asia or Latin America.

Consumed in the the United States of America in canned form.

This is a planetary supply chain, no tariff, wall, or executive order can change that.

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#FoodSecurity #TradeNetworks

Johannes Boehm and Thomas Chaney tracked nearly half a million coins from AD 325–950.

What they found is astonishing: the fall of Mediterranean trade, the rise of the Islamic world, and the economic rebalancing of Europe - all mapped through money.
#MonetaryHistory #SilkRoads #TradeNetworks

Hiding in plain sight: the biomolecular identification of pinniped use in medieval manuscripts | Royal Society Open Science The survival of medieval manuscripts in their original bindings remains a rare occurrence. Taking advantage of the diversity of bindings in Cistercian libraries such as Clairvaux and its daughter abbe...

6/🧵 105 Romanesque bindings (63% of the collection!) originally had sealskin chemises, though most have disappeared with only traces remaining.

Similar bindings in other "daughter houses" of Clairvaux across Europe.

Full paper in RSOS:
#medieval #manuscripts #biocodicology #tradeNetworks

5/9 This system helped China lift more people from poverty than any nation in history. It created beneficial North American supply chains with Canada and Mexico. It fostered the trans-Atlantic alliances that maintained European peace since WWII.
#GlobalStability #TradeNetworks

New finds from Kenya suggest that humans used long-distance #tradenetworks, sophisticated #tools, and #symbolic pigments right from the dawn of our species.

"An Older Origin for Complex Human Cultures" - by @edyong209 via @TheAtlantic