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Trinity

Christian conception of God as consisting of three persons (hypostases) — the Father, the Son, and the Holy Spirit — sharing the same substance (ousia)

6 dated entries naming Trinity, drawn from 6 separate years between 217 CE and 1461 CE. Nothing here is written by us: each line is the sentence a Wikipedia year article used, and the link beside it opens the exact revision.

Also written as Holy Trinity, Trinitarianism in the source articles; Wikipedia redirects those to the same subject, so their entries are on this page.

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3rd century

  • 217December 20 – The papacy of Zephyrinus ends. Callixtus I is elected as the sixteenth pope, but is opposed by the theologian Hippolytus who accuses him of laxity and of being a Modalist, one who denies any distinction between the three persons of the Trinity.source
  • 260Pope Dionysius convenes a synod at Rome to demand an explanation from bishop Dionysius of Alexandria, who has been charged with separating the members of the Trinity as three distinct deities.source

4th century

  • 325May 20 – First Council of Nicaea: Constantine summons an ecumenical council of bishops in Nicaea (Turkey). The Nicene Creed, adopted on June 19, declares that the members of the Trinity (the Father, the Son, and the Holy Spirit) are equal. The council decides that Easter is celebrated on the first Sunday after the first full moon after the vernal equinox. Arius is exiled to Illyria; his works are confiscated and consigned to the flames.source
  • 382The same council adopts Trinitarianism as doctrine, condemning Apollinarism. Theodosius I orders the death of members of the Manichaean monks.source

5th century

  • 428April 10 – Nestorius is made patriarch of Constantinople. He preaches a new doctrine, that will be called Nestorianism. It makes a distinction between the divine and human natures of Jesus, but comes under immediate attack from Pope Celestine I, and Cyril of Alexandria.source

15th century

  • 1461February 2 – After the "sun dog" (parhelion) weather phenomenon in England gives the illusion of three suns rising at dawn, Edward, Earl of March, leads the Yorkists to victory over the Lancastrians in battle at the Battle of Mortimer's Cross. Edward convinces his frightened troops that the three sunrises represents the Holy Trinity and divine support for the Yorkist cause. The Lancastrians, led by Owen Tudor and his son Jasper Tudor, Earl of Pembroke, are defeated, and Owen Tudor is taken prisoner and executed.source

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