Simplify the following text for a Grade 8 native English-speaking person.
Original: It served as the premier title for tag teams in WWE from 1971 until 2002 when a second WWE Tag Team Championship was established . Both titles were unified in 2009 and were collectively referred to as the Unified WWE Tag Team Championship while essentially remaining independently active until the World Tag Team Championship was decommissioned in 2010 .
Simplified: For the other title that makes up the Unified WWE Tag Team Championship , see WWE Tag Team Championship .