The article and the referenced article in BYU Studies, if I am correct, point out that John Whitmer's introduction appears to have been incorporated into verse 1, and some have interpreted that to mean that 6 April 1830 is exactly 1830 years since Christ's birth. But the recently printed volume (Volume II, I believe) of Joseph Smith papers shows that it was originally an introduction written by the Church Historian at the time, John Whitmer. All in all, not important to me when Christ was born..so much more important that he lived and died and lived again.
