Complex sentence: Cedargate Records was a record label that was founded in the late 90's by Zac Phelps (of Wrench) and it is mostly known for having released the now rare Eighteen Visions album Yesterday Is Time Killed.
Split into simpler sentences: Cedargate Records was a record label that was founded in the late 1990's by Zac Phelps (of Wrench). The label is noted for having released the now-rare Eighteen Visions album Yesterday Is Time Killed.