Deletion of Roger Birkman

Comment: Berkman is a pioneer of the personality test. Although his system is not as well known as Myers-Briggs, it is one of the originals and has made a big impact. 2.5 million people have been tested on it and used by more than 2,000 companies worldwide in 11 languages. See the article http://www.chron.com/news/article/Personality-test-pioneer-set-standard-for-1585815.php "Personality test pioneer". The sourcing isn't great but I think he passes on  #2 "The person has made a widely recognized contribution that is part of the enduring historical record in his or her specific field." This is supported by the numerous mentions in Google Books
Stance: keep
Cited policy: Wikipedia:Notability (WP:ANYBIO)