Jane Austen wrote Persuasion from August 8, 1815 to August 6, 1816. The book sold in a collection and was not published until December of 1817, which is sometimes dated as 1818, about five months after her death.

This image is from the original manuscript of Persuasion. Here is the link if anyone is interested:

http://www.bl.uk/learning/timeline/item106326.html

Gemmill, Katie. “Jane Austen as Editor: Letters on Fiction and the Cancelled Chapters of Persuasion.” Eighteenth Century Fiction, vol. 24, no. 1, Fall 2011, pp. 105–122. EBSCOhost, doi:10.3138/ecf.24.1.105.