The position of Senior Minister has only been held by four persons -- Lee Kuan Yew and Goh Chok Tong, who were the first and second Prime Ministers of Singapore respectively; and S. Rajaratnam and S. Jayakumar, who served as Deputy Prime Ministers.
The S. Rajaratnam School of International Studies (RSIS) was inaugurated on 1 January 2007 as an autonomous School within the Nanyang Technological University (NTU), upgraded from its previous incarnation as the Institute of Defence and Strategic Studies (IDSS), which was established in 1996.