Lactantius died in 320.

Lactantius was born in 240.

Kathleen Ellen Hartwell has written:

'Lactantius and Milton' -- subject(s): Comparative Literature, English and Latin, Influence, Knowledge, Latin and English, Literature, Sources

Lactantius states that, in the night before the battle, Constantine was commanded in a dream to "delineate the heavenly sign on the shields of his soldiers" (On the Deaths of the Persecutors 44.5). He followed the commands of his dream and marked the shields with a sign "denoting Christ".

It is uncertain. According to Lactantius, Constantine had a vision which made him convert to Christianity the night of the Battle of the Milvian Bridge which he fought outside Rome against Maxentius, a usurper, in 312. According to Eusebius he had this experience when he was in Gaul, sometime before he started his war against Maxentius. The experience Eusebius described was also different in detail.