Categories General Just for Fun Arizona Centennial Post author By Larry Emmott Post date February 14, 2012 No Comments on Arizona Centennial Today is Arizona Centennial Day. Arizona became the 48th State on February 14, 1912. ← Megapixel Augmented-Reality Contact Lenses → Digital Record EHR Leave a ReplyYour email address will not be published. Required fields are marked *Comment * Name Email Website