What is "apostacon"

Apostacon ( portmanteau of "apostate" + "conference"), before 2013 known as Midwest Humanist Conference, Midwest Humanist and Freethought Conference and Midwest Freethought Conference, is an annual event about atheism, freethought, humanism, secularism and skepticism in the ( Midwestern) United States. The conference, which embraces the parody religion of the Flying Spaghetti Monster, is aimed at "atheists, humanists, agnostics, skeptics, apostates, freethinkers, rationalists and pastafarians."