Both the CreateDate and UpdateDate properties are not what I need to display, since the first may be some time before official publication, and the second may change (more than once) after official publication when correcting errors in the document.
I was thinking that I may inspect previous versions of the document for this, but as usual I have difficulty finding API documentation.
Any tips?
This is a companion discussion topic for the original entry at https://our.umbraco.com/forum/24966-how-can-i-find-the-date-and-time-a-document-was-first-published