The translation of the Book of Mormon can be considered the most pivotal question regarding the truthfulness of the restoration. Joseph Smith was the only person that was present during the whole translation process, and all he said was that it was by "the gift and power of God."
In order to understand Joseph Smith's experience of being a seer before he got the golden plates, we have to understand his involvement in treasure digging. Treasure seeking was a somewhat common activity that people in his area in New York engaged with in the 19th century. The activity consisted of using a seer or "peep" stone to see lost treasure. The treasure was often guarded by spirits that had a certain set of requirements to obtain the treasure. If the requirements were not met, then the treasure would "slip away" into the earth. It is also important to note that although this activity was common, it was also illegal, which is ultimately what motivates Joseph Smith to move on from it (until one more occurrence in 1836)
.~ 1822
Jospeh Smith finds a seer stone when digging in a well on Willard Chase's property. [2]
~ 1822
Pomeroy Tucker speaks of a treasure dig that lasted two hours in Palmyra. When the treasure was in grasp, somebody "being tempted by the devil" spoke, and the treasure slipped away. [3]
~ 1822
William Stafford is approach by Joseph Smith Sr. saying that Joseph Smith Jr. saw "two or three kegs of gold and silver" not far from Stafford's house. After forming a ring of rods around the spot, the treasure slipped away. Joseph Jr. said that the guardian spirit was not pleased with the operation. [4]
Oct, 18, 1825
Joseph Smith is hired by Josiah Stowell to help him in treasure digging expeditions. [5]
~ Nov 1825
Smith, Stowell, and others are on a dig that Smith described as being guarded by an ancient band of robbers. You could only obtain it by faith and certain "talismanic influences." As they were digging, they struck the box of the treasure chest. A man put his hand on the chest, but it gradually sunk into the earth. They resolved that the "lack of faith" was the reason for their failures. (Note: the date of this is unknown, but it is likely in between when Stowell hired Joseph and his trial).[6]
Nov, 17, 1825
Mar, 20, 1826
Jan, 18, 1827
~ Aug 1827
Joseph Smith admits to Isaac Hale, his father-in-law, that he could not see anything in the stone when treasure digging, and that it was all "d---d nonsense."
~ 1834
"They would say, also, that nearly all the hills in this part of New York, were thrown up by human hands, and in them were large caves, which Joseph, Jr., could see, by placing a stone of singular appearance in his hat, in such a manner as to exclude all light; at which time they pretended he could see all things within and under the earth, - that he could see within the above mentioned caves, large gold bars and silver plates - that he could also discover the spirits in whose charge these treasures were, clothed in ancient dress" - William Stafford[14]
~ 1834
"This power he pretended to have received through the medium of a stone of peculiar quality. The stone was placed in a hat, in such a manner as to exclude all light, except that which emanated from the stone itself. This light of the stone, he pretended, enabled him to see any thing he wished" - Joseph Capron[15]
Aug, 6, 1836
During financial hardships for the church, Joseph Smith receives a revelation about a certain "treasure" that exists in Salem. This revelation says that "its wealth, pertaining to gold and silver, shall be yours." There aren't any accounts of actually obtaining any treasure.
After Joseph Smith's trial in 1826, Joseph Smith Sr. wished his son would use his skills in a more sacred way. Joseph Smith Sr. said that both "he and his son were mortified that this wonderful power which God had so miraculously given him should be used only in search of filthy lucre, or its equivalent in earthly treasures... He trusted that the Son of Righteousness would some day illumine the heart of the boy, and enable him to see His will concerning him" [6]. This led Joseph Smith Jr. to a more earnest focus on the retrieval of the golden plates.
Sep, 22, 1823
Nov, 15, 1823
Alvin dies and tells Joseph to "do everything that lays in your power to obtain the records"[24]
Sep, 22, 1824
Joseph returns to the hill and again fails to obtain the plates because of thoughts to use the plates for himself.[25]
Sep, 29, 1824
There were rumors that Alvin's body had been dug up and disected, so Joseph Smith Sr. posts in the newspaper that he dug up the grave to prove that the body was still there.[26]
~ 1826
Sep, 22, 1826
Joseph returns yet again to the hill after meeting Emma Smith in Harmony, Pennsylvania. Moroni counsels him to stop working with the money diggers.[28]
Sep, 21, 1827
Joseph Smith Jr. asks his dad Joseph Smith Sr. to keep an eye on Samuel Lawrence because he fears that he will be also looking for the plates[29]
Sep, 22, 1827
Joseph obtains the plates with Emma from the hill.[30]
Nov, 9, 1827
Joseph and Emma move to Harmony, PA.[8]
Jan, 1, 1828
Martin Harris comes to Palmyra and says that God told him in a vision to take some characters to New York (Charles Anthony).[31]
Apr, 12, 1828 to Jun, 14, 1828
When Martin Harris returns, he and Joseph earnestly translate 116 pages of the Book of Mormon.[8]
~ Jun 1828
Martin Harris takes and loses the 116 pages of the Book of Lehi.[32]
~ Jul 1828
Joseph rebuked and loses the plates and gift to translate.[33]
Sep, 1, 1828
Joseph gets the gold plates and interpreters again[34]
Apr, 7, 1829 to Jun, 1, 1829
Oliver Cowdery arrives and begins acting as the primary translation scribe. The majority of the Book of Mormon is translated.[35]
It is natural to characterize the retrieval of the golden plates as an extension of another treasure dig. It has a guardian angel (Moroni). It has certain requirements necessary for retrieval. When the requirements weren't met, the plates would "slip away" from Joseph's grasp. Because of these similarities, critics of the church often conclude that Joseph Smith was trying to come up with the story of the golden plates as a way to bolster his credibility after his 1826 trial, especially given the fact that he had not had a successful treasure digging run and people were becoming skeptical. Apologists, however, conclude that the similarities to this magical worldview actually helped Joseph Smith and his family be more likely to accept the command from Moroni as from God. This falls in line with the idea that God speaks according to our understanding [36]. Here is what Richard Bushman, an LDS historian, has to say about this:
"For people in a magical frame of mind, Moroni sounded like one of the spirits who stood guard over treasure in the tales of treasure-seeking. The similarities may even have made the extraordinary story more credible in the Smith family."- Richard Bushman[37]
Regardless of the reason, Joseph Smith eventually retrieved the plates and commenced translation of them.
There are many accounts of the method of translation for the Book of Mormon. Some agree, and some disagree. While there are a number of accounts describing the stone in the hat, there are a few that describe the two spectacles (later termed the Urim and Thummim). Not one of these accounts was there for the full translation process-- only Joseph Smith himself who did not give any details to the methods.