The origin of the aura is ancient, dating before Egyptian times.
Historical records reveal that pre-Christian auras identified holy or divine healers.
This was especially so during the Mithras era. He died in 1869. His findings were never really accepted by the scientific community. On the other side of the world, in the USA, in early 1878, Edwin Babbit continued the research begun by Reichenbach. He too was duly dismissed by the scientists of his time.