How did Christianity spread?

Europe converted between 350 AD through 600 AD, primarily from the 390 AD - 500 AD for mainland Europe, then England by the 600s.

Early Christianity before Constantine
>From 180 AD through 300 AD, there is a noticeable uptick in Christians (although Pliny the Younger in 112 AD mentions them to Trajan & Tacitus mentions Nero's persecution in 64 AD, Christians became way more prevalent sometime around 180 AD - 300 AD).
>The Diocletian persecution would happen in 303 AD, but to no avail.
>311 AD, Galerius ends persecution with the Edict of Serdica.

Constantine & his dynasty
>Edict of Milan
>Constantine's reign is tolerant, but would prohibit animal sacrifices
>By around 350 AD, Christians begin to predominate
>Constantius II institutes anti-pagan policies:
>Death penalty for sacrifices and idolatry
>Closure and destruction of temples throughout the empire
>In 357 AD, Constantius II removes the Altar of Victory

Theodosius I
>Theodosius I reinforces what Constantius II started, effectively expunging paganism.
>Christianity becomes the state religion
>pagan temples throughout the empire would have funding removed and destroyed, like Henry VIII's dissolution of the monasteries
>Eternal fire in the Temple of Vesta is extinguished
>Theodosius I is renown as the emperor who killed paganism
>After Theodosius I, his sons, Honorius and Acadius, continue suppressing paganism

Fall of the Roman Empire
>Arian Christians and Germanic tribes adopt Christianity
>Clovis converts in 496 AD, the culmination of Christianity in the West
>England by 597 AD to 680 AD converts, particularly between 625 AD to 642 AD.
>Boniface cuts Donar's Oak c. 723 AD
>Charlemagne conquers the Saxons and forcibly converts
>Northern Europe begins to convert around 900 AD - 1, 000 AD
>Northern Crusades ensue to convert the remnants of pagan Europe
>Lithuania is the last to convert

How did Christianity spread?

Europe converted between 350 AD through 600 AD, primarily from the 390 AD - 500 AD for mainland Europe, then England by the 600s.

Early Christianity before Constantine
>From 180 AD through 300 AD, there is a noticeable uptick in Christians (although Pliny the Younger in 112 AD mentions them to Trajan & Tacitus mentions Nero's persecution in 64 AD, Christians became way more prevalent sometime around 180 AD - 300 AD).
>The Diocletian persecution would happen in 303 AD, but to no avail.
>311 AD, Galerius ends persecution with the Edict of Serdica.

Constantine & his dynasty
>Edict of Milan
>Constantine's reign is tolerant, but would prohibit animal sacrifices
>By around 350 AD, Christians begin to predominate
>Constantius II institutes anti-pagan policies:
>Death penalty for sacrifices and idolatry
>Closure and destruction of temples throughout the empire
>In 357 AD, Constantius II removes the Altar of Victory

Theodosius I
>Theodosius I reinforces what Constantius II started, effectively expunging paganism.
>Christianity becomes the state religion
>pagan temples throughout the empire would have funding removed and destroyed, like Henry VIII's dissolution of the monasteries
>Eternal fire in the Temple of Vesta is extinguished
>Theodosius I is renown as the emperor who killed paganism
>After Theodosius I, his sons, Honorius and Acadius, continue suppressing paganism

Fall of the Roman Empire
>Arian Christians and Germanic tribes adopt Christianity
>Clovis converts in 496 AD, the culmination of Christianity in the West
>England by 597 AD to 680 AD converts, particularly between 625 AD to 642 AD.
>Boniface cuts Donar's Oak c. 723 AD
>Charlemagne conquers the Saxons and forcibly converts
>Northern Europe begins to convert around 900 AD - 1, 000 AD
>Northern Crusades ensue to convert the remnants of pagan Europe
>Lithuania is the last to convert

Europe converted between 350 AD through 600 AD, primarily from the 390 AD - 500 AD for mainland Europe, then England by the 600s.

Early Christianity before Constantine
>From 180 AD through 300 AD, there is a noticeable uptick in Christians (although Pliny the Younger in 112 AD mentions them to Trajan & Tacitus mentions Nero's persecution in 64 AD, Christians became way more prevalent sometime around 180 AD - 300 AD).
>The Diocletian persecution would happen in 303 AD, but to no avail.
>311 AD, Galerius ends persecution with the Edict of Serdica.

Constantine & his dynasty
>Edict of Milan
>Constantine's reign is tolerant, but would prohibit animal sacrifices
>By around 350 AD, Christians begin to predominate
>Constantius II institutes anti-pagan policies:
>Death penalty for sacrifices and idolatry
>Closure and destruction of temples throughout the empire
>In 357 AD, Constantius II removes the Altar of Victory

Theodosius I
>Theodosius I reinforces what Constantius II started, effectively expunging paganism.
>Christianity becomes the state religion
>pagan temples throughout the empire would have funding removed and destroyed, like Henry VIII's dissolution of the monasteries
>Eternal fire in the Temple of Vesta is extinguished
>Theodosius I is renown as the emperor who killed paganism
>After Theodosius I, his sons, Honorius and Acadius, continue suppressing paganism

Justinian I wiped the last bastions of paganism in his reign in the 500s, expelling the Academy of Athens.

Fall of the Roman Empire
>Arian Christians and Germanic tribes adopt Christianity
>Clovis converts in 496 AD, the culmination of Christianity in the West
>England by 597 AD to 680 AD converts, particularly between 625 AD to 642 AD.
>Boniface cuts Donar's Oak c. 723 AD
>Charlemagne conquers the Saxons and forcibly converts
>Northern Europe begins to convert around 900 AD - 1, 000 AD
>Northern Crusades ensue to convert the remnants of pagan Europe
>Lithuania is the last to convert