[3] In 1986 he took a post at the Department of Environmental Health at the University of Washington in Seattle as a cancer researcher.
As a result of work done in that post and in China he was appointed as an expert for the World Health Organization on cancer.
This inspired him to write a more widely accessible book, The Mayan Calendar published in 2001.
[3] Calleman's beliefs differ from other interpreters of the Mayan calendar and the 2012 phenomenon in that he sees the crucial date for change as 28 October 2011—not 21 December 2012—which he postulates will see the culmination of a series of nine waves of increasing frequency which have influenced, and continue to influence, the development and evolution of both the physical universe and human consciousness.
[10] Beginning with the Big Bang he believes creation has continued through a series of waves, each one a factor of 20 times shorter in duration than the one preceding it.
[12] The final wave, the ninth and shortest of all, began on 8 March 2011 and will complete along with all the others on 28 October 2011 sees awareness of the whole of the cosmos achieved.