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TIL that there is a type of tree that produces 40 types of fruits a year. The ‘Tree of 40 Fruit’ are fruit trees created using the technique of grafting, as an intersection of art, farming, and preservation and each tree produces an incredible harvest of all kinds of stone fruits.

XELmR TIL the Appalachian Mountains were once part of a mountain range called the Central Pangean Mountains, which were created when the supercontinent Pangea was formed about 335 million years ago. Other mountains that were once part of that range are now in Africa and Scotland.
oByZR TIL that the Pentagon has a full-blown battle plan against zombies, for in-house training. In this document, zombies are categorized, from "evil, magic" zombies to "vegetarian" zombies which groan "graaaains" instead of the usual "braaaains".
m9lR TIL in 1990, Americans were told Iraqi forces in Kuwait removed hundreds of babies from incubators and were thrown in the street or killed. The story was false and part of a PR firm’s contract to build up US public support for the invasion of Iraq. It was overwhelmingly successful.
8vo8 TIL that in 1995 Kia was showing a range extended gas/electric (the Kev-4 concept car) with regenerative braking and solar powered air conditioner. It would drive on electricity alone for 117 miles. Its 880cc gas engine could stretch that farther. This was 15 years before the Chevy Volt.
R7RZ1 TIL the 1918 flu was recreated from a victim found in the Alaskan permafrost. Monkeys infected with the flu strain had classic symptoms of the 1918 pandemic, and died from a cytokine storm - an overreaction of the immune system. This helps to understand why healthy individuals died from the flu.