I am trying to track down the publication date of a music book that I own. It makes mention of another manuscript volume known as 'The Fisk Jubilee Songs. A collection of 66 JUBILEE and PLANTATION SONGS (Sacred and Secular) as sung by the Fisk Jubilee Singers on their world's tour'.

Does anyone please have any idea what the Jubilee was? Does it somehow relate to an anniversary of US independence? When was the jubilee?

All help appreciated. Regards, John