Bruce L. Shelley adds, “From the year 312, he favored Christianity openly. He allowed Christian ministers to enjoy the same exemption from taxes as the pagan priests, he abolished executions by crucifixion; he called a halt to the battles of gladiators as a punishment for crimes; and in 321 he made Sunday a public holiday. Thanks to his generosity, magnificent church buildings arose as evidence of his support of Christianity. This public Christianity was matched by changes in Constantine’s private life, Making no secret of his Christian convictions, he had his sons and daughters brought up as Christians and led a Christian family life. Bishop Eusebius of Nicomedia baptized him shortly before he died in 337. After his baptism, Constantine refused to wear again the imperial purple and thus left this life dressed in his white baptismal robes” (108, 109).