Eponym
These cytoplasmic inclusions are named for John Auer, an American physiologist (1875-1948).
However, they were first described in 1905 by a Canadian physician, Thomas McCrae, then at The Johns Hopkins Hospital, one year before Auer, as acknowledged in Auer's article. Both McCrae and Auer mistakenly thought that the cells containing the rods were lymphoblasts.
Read more about this topic: Auer Rod