When a proselytizing believer comes up against a skeptic's observation that there is no credible objective evidence of supernatural beings, the believer will sometimes try to reject that observation by telling the skeptic, "You can't disprove the existence of God". Is that a valid argument? In order to examine that question, let's try out the argument on a simpler task. Let's try to disprove the claim "unicorns exist."

While I was helping to tend the Michigan Atheists’ booth at the Allen Park Street Art Fair on August 8, 2015, a young man wearing a “Grace College/Univ” tee-shirt stopped to talk, and asked us whether or not Atheists “believe in” evolution. I told him that Atheists do not “believe in” evolution the way that theists “believe in” the existence of one or more gods. Most Atheists accept evolution as the best-supported explanation put forward, so far, to explain the observed similarities between species.

Named the Father of Harlem Radicalism, Hubert Henry Harrison was an African-American class-radical, race-radical, and anti-religion radical –a rare combination for the early Twentieth Century. At a time when most African-Americans supported the Republican Party, Harrison was working directly for Socialist causes like the Socialist Party (SP), American Federation of Labor (AFL), and the International Workers of the World (IWW). He later founded the Liberty League, and its newspaper, The Voice, as Black race conscious organizations that were more radical and farther to the political Left than similar contemporary organizations such as the NAACP. Both the Liberty League and The Voice would be the direct precursors of Marcus Garvey's Universal Negro Improvement Association (UNIA) and its newspaper, The Call.