The Church of Jesus Christ of Latter-day Saints (the "Mormon" church) was officially founded in 1830. However, members of the Church believe that their religion is the same as that practiced in The Bible, clear down to Adam and Eve, so some Mormons might say that the Mormons have always been in existance!
As long as cows have been in existence, or the whole Bos primigenius species and subspecies have been in existence.
they have been in existence for 110 years since 1901.
Helium is has been in existence since the beginning of the universe.
long time
since 1992
October 1920
they have been here forever
1956
1909
1950
The saxophone was patented in 1846.
88 years