The 4e Forgotten Realms Campaign Guide says,
Did this ever happen? Were there ever any official updates to the Grand History?
Dungeon Masters who are interested in the definitive history of the FORGOTTEN REALMS world are encouraged to review the Grand History of the Realms supplement. In addition, updates to the Grand History’s extensive and comprehensive timeline will periodically be made available online at D&D Insider (http://www.dndinsider.com).
Did this ever happen? Were there ever any official updates to the Grand History?