Why was the arch of consantine built?

The Arch of Constantine was built to commemorate Emperor Constantine's victory over Maxentius at the Battle of Milvian Bridge in 312 AD. It serves as a symbol of Constantine's rise to power and the establishment of Christianity as a prominent force in the Roman Empire. Additionally, the arch celebrates both military success and the transition towards a more Christianized Rome. Its design incorporates elements from earlier monuments, reflecting the continuity of Roman tradition while marking a significant historical shift.