It was expected that Maxentius would try the same strategy as against Severus and Galerius earlier; that is, remaining in the well-defended city of Rome, and sit out a siege which would cost his enemy much more. For somewhat uncertain reasons, he abandoned this plan, however, and offered battle to Constantine near the Milvian Bridge on 28 October 312. Ancient sources usually attribute this action to superstition or (if pro-Constantinian) divine providence. Maxentius of course had consulted soothsayers before battle, as was customary practice, and it can be assumed that they reported favourable omens, especially as the day of battle would be his "dies imperii", the day of his accession to the throne (which was 28 October 306). What else may have motivated him, is open to speculation.