They founded Salt Lake City and pretty much all of Utah. They made the Oregon trail famous and they contributed mostly to the Donner party incident.
The right to vote
1. How did the surge in population in the United States in the late nineteenth century contribute to the development of the computer?
How can culture contribute to development
how did explorers contribute to the development of europe
All states in the US are inhabited by mormons, Utah having the largest population.
Nobody. The Church of Jesus Christ of Latter-day Saints (the "Mormon" church) was founded in the US - so the first Mormons were already in the US! :) If you are speaking of the first Mormons to move from another country to the US, rather than the first Mormons ever in the US, the answer is still nobody. The first Mormons to move from another country to the US came from Canada, and were not 'brought' by any specific person, only encouraged to move so that they could be nearer to the main body of the church.
How did agriculture contribute to the development of Egyptian society?
around 6 million
How did the library at Alexandria contribute to the development of marine science
Yes, definately. There are members of the Church of Jesus Christ of Latter-day Saints (the "Mormon" church) in every state of the US. There are over 6 million Mormons in the United States. The state with the largest number of Mormons is Utah with 1.8 million Mormons. The state with the fewest number of Mormons is Rhode Island, with about 4,000 Mormons.
How can culture contribute to development
The short-lived war between the US and the Mormons occurred when the US government sent a non-Mormon, unelected appointee to the territory inhabited by the Mormons and announced without discussion that this individual would be the governor. The Mormons refused to accept the imposition of an unelected and unsympathetic government. The US sent the Army to impose the government's will. The Mormons prepared to fight back, and Army arrived, negotiations resolved the conflict, and no hostilities actually took place.