The Emperor Antoninus Pius: 136-161 - Information on the life and reign of the Emperor Antoninus Pius. - http://campus.northpark.edu/history/webchron/Mediterranean/AntoniusPius.CP.html
Antoninus Pius - Encyclopedia article about the Roman Emperor from Wikipedia. - http://en.wikipedia.org/wiki/Antoninus_Pius
Anastasius - Offers an overview of the Roman Emperor Antoninus Pius who reigned from A.D. 138-161. - http://www.roman-emperors.org/tonypis.htm