Complex sentence: The Italian Catholic diocese of Nocera Inferiore-Sarno was created in 1986, merging the historic diocese of Nocera de' Pagani with the diocese of Cava e Sarno.
Split into simpler sentences: The Italian Catholic diocese of Nocera Inferiore-Sarno has existed since 1986. In that year the historic diocese of Nocera de' Pagani was united with the diocese of Cava e Sarno.