Who was discovered first homo sapiens or homo neanderthalensis?

Australopithecus Afarensis (Southern Ape, Afar Triangle) were found by a paleoanthropologist named Donald Johansen. Homo Habilis (Handy Man) were found by husband-and-wife Louis and Mary Leakey. Homo Erectus (Upright Man) were found by Eugene Dubois. Homo Sapiens Neanderthalensis (Neanderthals) were found by some mine workers in Germany's Neander Valley. Homo Sapiens Sapiens (Doubly Wise Man) were first found by an eight-year-old Spanish girl named Maria. Lots of big Words, but totally worth knowing your monkey uncle.

There isn't any possible way to answer your question because your question isn't clear. Are you referring to Homo Sapiens Sapiens, or Homo Sapiens Neanderthalensis? HSS were found in 1879, and HSN were found in 1856, so I guess HSS were found first. As I said before, knowing your monkey uncle is totally worth it.