When used as an expletive, the name Jesus Christ often gets an H inserted into the middle of it for some reason. I've heard lots of guesses about what the H stands for, the most popular one being Henry, but no one seems to actually know, and I've never gotten any good explanation of where it came from or why it became popular to insert it.
- Is there any documentation of when Jesus H. Christ as opposed to simply Jesus Christ came into currency as an expletive?
- Is there any authoritative explanation of what, if anything, the H was originally supposed to stand for?


