Complex sentence: In June 2014, Hamline's adjunct professors voted to form a union as part of the SEIU, making Hamline the first private university in Minnesota where adjunct faculty formed a union.
Split into simpler sentences: In June 2014, Hamline's adjunct professors voted to form a union as part of the SEIU. This makes Hamline the first private university in Minnesota to have its adjunct faculty form a union.