There are many dates which historians argue could constitute the birth of Northern Ireland, but a panel of government-appointed experts have decided that it came into being on the 3rd of May 100 years ago. As the Queen and others send messages marking the centenary, we look back at a clandestine meeting in which the staunch unionist James Craig travels to Dublin for talks with the Sinn Fein leader Éamon de Valera. Meanwhile, in Mayo, a whole village is kidnapped by the IRA.