The Birth of Slaanesh

Metaphysical / Paranormal event

The warp entity feeding on the veritable feast of decadent emotions emanating from the Eldar starships of the Eldar Cult of Pleasure grew so large that it dominated the warp.  Having filled the void, it was desperate to grow still farther, straining at the apparent limitations being imposed upon it by The Warp Gates built by the Old Ones. Interdimensional space travel through Warpspace became extremely perilous and ships were becoming lost in the many strange warp storms along their routes. Thousands of planets had been isolated for centuries, or even millennia, including both Warhammer and Earth.