Wikipedia

Fern spike ( en.wikipedia.org )

"the occurrence of unusually high spore abundance of ferns in the fossil record, usually immediately (in a geological sense) after an extinction event. The spikes are believed to represent a large, temporary increase in the number of ferns relative to other terrestrial plants after the extinction or thinning of the latter."

Zveno project ( en.wikipedia.org )

Zveno (Russian: Звено, a military unit "Flight") was a parasite aircraft developed in the Soviet Union during the 1930s. It was the brainchild of the aviation engineer Vladimir Vakhmistrov. It consisted of a Tupolev TB-1 or a Tupolev TB-3 heavy bomber mothership and two to five fighters. Depending on the variant, the...

Lithuanian book smugglers ( en.wikipedia.org )

Lithuanian book smugglers or Lithuanian book carriers (Lithuanian: knygnešiaĩ, singular: knygnešys) smuggled Lithuanian language books printed in the Latin alphabet into Lithuanian-speaking areas of the Russian Empire, defying a ban on such materials in force from 1864 to 1904. In Lithuanian knygnešys literally means "the...

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