The Crystal Egg was created in 1897.
it hach is from an egg
there is no jirachi egg trick, but there is a celebii egg trick in Pokemon crystal
Crystal Caves was created on 1991-10-23.
It impregnates your pokemon
It varies
The Crystal Horde was created in 1952.
Crystal Illusions was created in 1969.
The Crystal Bucephalus was created in 1994.
The Crystal Frontier was created in 1995.
The Crystal Prison was created in 1989.
Crystal Baller was created in 2003.
Crystal Globe was created in 1948.