OSLO, Norway (AP) — In a ceremony last night, the 2015 Nobel Peace Prize was awarded to Barack Obama, John Kerry, Mohammed Zarif, and Hassan Rouhani. The event, held in the Oslo city hall, marked the first time the prize has been shared by four winners. It was given in recognition of these men’s roles in crafting the Joint Comprehensive Plan of Action (JCPOA), also known as the Vienna Protocols.