Ahh! You caught the out-of-place passover too, I reckon... Nice to know I am not the only one! I don't know how you came to blame it on Eusebius, but I bet that's got somewhat to do with it...
Prior to Eusebius, all of the commentators stated that Yeshua’s ministry was “about one year.” Eusebius was the first to say it was 3.5 years.