I am reading Alister McGrath's, newest book
"Christianity's Dangerous Idea".
On page 32, he is describing the formation of Jerome's Latin Vulgate, he points out that up to the point of his translation certain passages in the Catholic translation were assumed to be scripture, when in fact they weren't.
One such passage was
1 John 5:7-8
7 For there are three that bear witness in heaven: the Father, the Word, and the Holy Spirit; and these three are one. 8 And there are three that bear witness on earth: the Spirit, the water, and the blood; and these three agree as one.
He discovered in doing his Greek Translation that this passage was added after the 8th Century, most likely a commentary on the previous verses that a scribe took to be a passage of scripture.
I think for some this is old news, but I enjoyed discovering it and having a notable scholar point out this undermines a traditional cardinal doctrine of traditional Evangelicalism, the Trinity.
Anyway, while I am starting the book, I will report any other notable items.