Where did the Mormons leave from when treking west?
The Mormons were receiving massive persecution, being moved from New York to Kirtland, to eventually Utah. So basically, they wanted a place to worship their religion in peace
Leave where? Mormons are still around and are growing rapidly. There are almost 14 million of them all around the world! The Mormons under Brigham Young left their city of Nauvoo in 1846. His goal as was Joseph Smiths was to form a new Zion to the West. One of the reasons for the persecution of the Mormons was their belief that God condoned polygamy.
The Mormons moved to the west because they were trying to leave the United States. They had been kicked out of Ohio, Missouri, and Illinois, and thought they would try their luck in what was then Mexico. Also, Joseph Smith had prophesied a few years before his death that the Church would eventually move to the Rocky Mountains. Soon after the Mormons arrived there, the United States took over the area.
The Mormons faced extreme persecution across the east and midwest, being kicked out of their homes and in some cases ordered to leave by the government. They moved west to a land that was both outside of US control (at the time) and which was sparsely populated so that they could have the freedom to practice their religion in peace.
Religious and political persecution forced the Mormons to move from several states in the east and midwest. In Illinois, their prophet Joseph Smith was murdered due to a political disagreement and the government asked the Mormons to leave in order to preserve the public peace. At this point they decided to move to a place that was largely uninhabited so that they could practice their religion in peace.
The people of Illinois could no longer tolerate the Mormon presence in Nauvoo. The Mormons were given an ultimatum: leave Illinois peacefully or be driven out by force. The Mormons chose to leave peacefully. This was the second time they had been threatened with such violence. They decided to go somewhere there would be no neighbors to threaten them. They received permission from the federal government to camp on Indian land as they traveled west…
After the government of Illinois ordered the Mormons to leave in 1846, Brigham Young decided to lead the Church membership to the west because Joseph Smith had prophesied years earlier that the Church would finally find a home in the Rocky Mountains. The combination of being ordered to leave Illinois and Joseph Smith's prophesy lead them to create the trail.
The Mormons moved west in search of a new home, not a new phone. Phones weren't even invented yet (this was in the 1840's). The Mormons had been persecuted and kicked out of Ohio, Missouri, and Illinois, so they went further west into what was then Mexico in search of a place where they could live in peace.
The Mormons faced very severe persecution in the east. They had been chased out of New York, Ohio, and Missouri and were facing pressure to leave Illinois. Joseph Smith prophesied that the Saints would find peace in the Rocky Mountains, however, he was murdered before this was able to happen. His successor, Brigham Young, lead the majority of Mormons to the west.