Can you please enlighten me as I am confused with the visitation of Christ to the Americas after 3 days and yet he also revealed himself in Jerusalem after 3 days. Was he in 2 places at once?
You are right: Christ, who had a tangible body, cannot be in two places at the same time. However, if we read the account in the Book of Mormon carefully, we see that there is no overlap, but rather plenty of time available for him to make these visits.
And it came to pass in the thirty and fourth year, in the first month, on the fourth day of the month, there arose a great storm, such an one as never had been known in all the land.
After 3 days and nights of intense darkness and the earth going thru massive upheavals, it stopped. The people came out and ‘marveled’ at how the land had changed. Many started to make their way towards the temple at Bountiful (perhaps to find other survivors, to be near a temple, etc.). Then, in 3rd Nephi, Chapter 10, verse 18, we read this:
And it came to pass that in the ending of the thirty and fourth year, behold, I will show unto you that the people of Nephi who were spared, and also those who had been called Lamanites, who had been spared, did have great favors shown unto them, and great blessings poured out upon their heads, insomuch that soon after the ascension of Christ into heaven he did truly manifest himself unto them—
From this we can infer that nearly a year’s span of time elapsed from the destruction witnessed on the night of Christ’s crucifixion to his appearance to the inhabitants in the new world.
I hope this answers your question.