Professor X was created in 1963.
No, they got it because Professor Charles Xavier otherwise known as Professor X created the team so he called them The X-Men.
The original X-Men from 1963 are: Jean Grey Iceman Cyclops Beast Angel and Professor X
Professor Unrat was created in 1905.
The Professor's House was created in 1925.
Professor Challenger was created in 1912.
Professor Potter was created in 1957.
The Professor's Commencement was created in 1902.
Professor Ivo was created in 1960.
Professor Chronotis was created in 1980.
Professor Power was created in 1982.
Professor Phobos was created in 1981.
Professor Ojo was created in 1977.