At MT.Ember
You have to trade with emerald of ruby to get groudon in leafgreen.
no
If you trade Pokemon between leafgreen and ruby ruby will have your leafgreen Pokemon and leafgreen will have the ruby Pokemon both in the party they will not be sent to the PC unless you personally walk to the PC and do so.
Sapphire and Ruby came out before firered and leafgreen but they are compatible with them.
to get the ruby yes you do
There are none in Pokemon Ruby trade from FireRed or LeafGreen.
Trade dratini from firered or leafgreen to ruby.
you can then trade to ruby,sapphire, and emerald games
trade from firered or leafgreen.
trade from firered or leafgreen.
Ruby and sapphire both were made in 2003, firered and leafgreen both were made 2004 and emerald was made in 2005. So to answer your question yes ruby and sapphire were made before firered and leafgreen though firered and leafgreen are based on the original red and blue version so if you want to get technical firered and leafgreen where made first. But in reality ruby and sapphire were made first.
you get the ruby in mount ember. (note:there should be two rokets)