Significant events of national importance have been occasions for the issue of commemorative notes in Sri Lanka.
The Central Bank of Sri Lanka has issued two commemorative notes.
Currently about 3% of the ~20.5 million notes issued are in circulation or with collectors.
[1] In 2009 the 1000 rupees note commemorating the end of the Sri Lankan Civil War and the Ushering of Peace and Prosperity note was issued.
The note is dated two days after the end of the war as 2009-05-20.