English clergyman and mathematician Thomas Bayes dies. Bayes proposed an interesting argument regarding the nature of evidence and propositions in his Essay towards solving a problem in the doctrine of chances (1764).
According to Bayes, evidence confirms the likelihood that a proposition is true only to the degree to which the appearance of this evidence is more probable when accompanied by the proposition than not.
For example, the appearance of smoke confirms the proposition "There is a fire" very strongly because the appearance of smoke with fire is much more probable than the appearance of smoke without fire. On the other hand, the appearance of an eye in nature does not confirm the proposition "God exists" because the appearance of an eye with God has not been shown to be more likely than the appearance of an eye without God.