I found it folded neatly in the back of volume one of Philip Hughes’ A History of the Church: An Introductory Study. I picked it up for $2.00 at the public library’s used book sale earlier this year.
Here on one piece of paper is all that was happening between the time Sts. Peter and Paul were martyred, up until the Edict of Milan. Sorry it’s a little cock-eyed, but this is the best I could do.
Ain’t it grand? The dates on the left and right hand margins, and working across from left to right we have the names of early heretics, Christian writers and writings of note, the popes by name, then the ruling emperors of Rome, the marquee names among non-Christian writers, and a highlight of the current events of note for each year.
If you need me in the next couple of hours, you know where I’ll be.
Looky here! Time Charts A, B, & C