Too bad they cannot bring themselves to spell “Neanderthal” correctly...
Perhaps you should take your inability to know what you’re talking about to another thread.
Neanderthal, (Homo neanderthalensis, Homo sapiens neanderthalensis), also spelled Neandertal, member of a group of archaic humans who emerged at least 200,000 years ago during the Pleistocene Epoch (about 2.6 million to 11,700 years ago) and were replaced or assimilated by early modern human populations (Homo sapiens) ...
Neanderthal is the more common spelling of the noun denoting the species of robust humanlike creatures that went extinct around 30,000 years ago. Neandertal is preferred by a few scientific publications. Neanderthal, the original spelling, was derived from the German valley where Neanderthal fossils were first discovered in the 19th century.
They did - there are 2 accepted spellings - the first is the original German spelling prior to 1901; then it was changed to the latter spelling.
see here
https://grammarist.com/spelling/neandertal-neanderthal/