Easter Rising in putting the rising off for only a day, although it greatly reduced the number of Volunteers who turned out. British Naval Intelligence had been aware of the arms shipment, Casement's return, and the Easter date for the rising through radio messages between Germany and its embassy in the United States that were intercepted by the Royal Navy and deciphered in Room 40 of the Admiralty. The information was passed to the Under-Secretary for Ireland, Sir Matthew Nathan, on 17 April, but without revealing its source, and Nathan was doubtful about its accuracy. When news reached Dublin of the capture
Centenary of the Easter Rising Taoiseach Enda Kenny laid a wreath. Silver and gold commemorative coins to mark the centenary, designed by Michael Guilfoyle, went on sale on Monday 4 April. They were only made available to collectors, and did not go into general circulation. On Sunday 24 April, events occurred to mark the centenary date of the start of the Rising. President Higgins, Taoiseach Kenny, members of the Government, Oireachtas and judiciary attended a ceremony at Arbour Hill, where a requiem Mass was overseen by the Roman Catholic Archbishop of Dublin Diarmuid Martin. The graveside of the executed leaders hosted an interfaith ceremony and