The Secular Origins of Thanksgiving by David Rice. Were you aware, did you know of the secular origins of a day so steeped in history and tradition? Learn more about a day that has had many turns throughout history. Visit #KingmanFreethinkers and hear this provocative lecture by Mr. David Rice. Join us Thursday November 21, 6:00 pm sharp. Kingman Public Library Conference Room, 3269 N. Burbank St, Kingman, AZ 86409