In heavy rain, President de Valera unveiled a statue of Thomas Davis at College Green In Dublin.
Relatives of Thomas Davis and other Young Irelanders along with 1916 veterans, gathered to see the sculpture unveiled. President de Valera addressed the crowd and pulled the chord to unveil the new statue.
The sculpture by Edward Delaney features a figure of Thomas Davis facing Trinity College and a fountain featuring four bronze figures who blow water through trumpets.
With the unveiling complete a group of school children sang 'A Nation Once Again' conducted by Proinsias Ó Ceallaigh.