Minecraftian Dark Ages
The Minecraftian Dark Ages were a long historical period demographic, cultural, and economic deterioration caused by societal collapse from the Great Grief. These Dark Ages ended with the resurrection of the Kingdom of Kythira and its formation into the Kythiran Empire at the start of the Third Era.
The period was characterized as a period of great anarchy and stagnation, where all the kingdoms of the Second Era had collapsed, resulting in wide-spread famine and anarchy, killing off much of the population from the First and Second Era.