No, no, no, "In the Know", the year is spot on, think about it:
In 100 BC people were saying, "Just 100 more years to go until... whatever we're counting down to" (they must have wondered what BC stood for as well at that time). Then at year 0 they heard the crying of a baby and said, "There you go, the years have been going backwards for the birth of that little fella, we can start counting forwards now".
So 60 years later they will have known the Birth of Christ was 60 years ago as it would have been the year 60!
And it's the resurrection, you're wrong about that too. Here, read this:
http://www.entourages.com/barbs/easterfacts.htm