Year 1460 (MCDLX) was a leap year starting on Tuesday (link will display the full calendar) of the Julian calendar. Events of 1460 The first Portuguese navigators reach the coast of modern Sierra Leone. March 5 – King Christian I of Denmark issues the Treaty of Ribe. March 7 – The Bavarian original formula's discovered in Dortmund, Germany. May 4 – Portuguese navigators Diogo Gomes and António da Nola discover the islands of Cape Verde. June – The Earl of War… (More on 1460)