Papa Anicetus alikuwa Papa kuanzia takriban 150/157 hadi kifo chake takriban 153/168. Alitokea Emesa, Syria. Alimfuata Papa Pius I akafuatwa na Papa Soter. Alipinga uzushi wa Gnosi na wa Marcio . Alimpokea Polikarpo kujadili suala la adhimisho la Pasaka Pia mwanahistoria Egesipo alitembelea Roma wakati wa Upapa wa Anicetus. Tangu kale anaheshimiwa na Wakatoliki na Waorthodoksi kama mtakatifu. Sikukuu yake ni tarehe 17 Aprili au 20 Aprili. Watakatifu wa Agano la Kale Orodha ya Watakatifu Wakristo Orodha ya Watakatifu wa Afrika Orodha ya Watakatifu Wafransisko Orodha ya Mapapa Mababu wa Kanisa Collected works of Migne Patrologia Latina https://www.vatican.va/content/vatican/en/holy-father.index.html#holy-father Raymond Davis (2000). Book of the Pontiffs (Liber Pontificalis) (Liverpool University Press - Translated Texts for Historians). Liverpool University Press, 5. ISBN 9780853235453.  Monks of Ramsgate. “Anicetus”. Book of Saints, 1921. CatholicSaints.Info. 20 July 2012 The Liber Pontificalis records that Anicetus decreed that priests are not allowed to have long hair (perhaps because the Gnostics wore long hair). Polycarp and his Church of Smyrna celebrated the crucifixion on the fourteenth day of Nisan, which coincides with Pesach (or Passover) regardless of which day of the week upon this date fell, while the Roman Church celebrated Easter on Sunday—the weekday of Jesus's resurrection.