What is the difference between a heretic and heresy?

heresy is (religion) a doctrine held by a member of a religion at variance with established religious beliefs, especially dissension from roman catholic dogma while heretic is someone who, in the opinion of others, believes contrary to the fundamental tenets of a religion he claims to belong to.

in november 1781, john hanson became the first president of the united states in congress assembled, under the articles of confederation. many people have argued that john hanson, and not george washington, was the first president of the united states, but this is not quite true.

explanation: