GMforPowergamers
Legend
Time of Troubles WAS the Realms changeover from 2e to 3e. Spellplague was the change to 4e, and the Sundering was the change from 4e to 5e (which is still conssidered a Realms-shaking event, though more spread out over time).
I believe the original death of Mystryl before she became Mystra also had a rather large cataclysm attached to it as part of the change from 1e to 2e, and the rearranging of how arcane magic worked.
I can't beilive I get to be 'that guy'... wow
OK, the fall of Nethrel and death of original magic goddess was long enough ago that it is not countable (Unless you count everything ever)
the change from 1e to 2e was the times of troubles... and that was where I had my first great FR experience
the 2e to 3e change was the birth of the shadow weave and the return of a shadow city somewhere, and the map rearranges where retcon (They were always this way nod wink)
the 3e to 4 was the spell plague
the 4e to 5e was the sundering
that is at least 4 modern RSE and the myth thingey that causes wild magic and fall of the floating city place and the fall of neithrel are anscent RSE and so there is a bit going on in this time line
Edit: DARN it [MENTION=6785785]hawkeyefan[/MENTION] ninjaed me