To specify the date when the logical content of a page was last modfied in a visible form which is also machine-readable.
Possible class names
General class name considerations
- + “paveing the cowpaths” (“Last-Modified” used by HTTP 1.0 and 1.1)
- - HTTP’s “Last-Modified” Header has a slightly different meaning. (Last modification date of the resource, not the last modification date of the resource’s logical content)
- + New name for a “new” semantic.
Different class name for page specific and item specific dates?
For example “page-last-modified” is used to indicate the last modification date of a page and “last-modfied” for the last modfication date of a specific item*.
- Easy parsing
* This specific item is marked-up with a microformat, e.g: a microformat to describe blog posts may use “last-modified” to indicate when a blog post was last modified.
Possible date formats
Every date format which can be used with Datetime Design Pattern can be used with “last-modified”
This page was last modified 13:26 UTC, 15 Aug 2005.
could be written as
This page was last modified <abbr class="some-class-name" title="2005-08-15T13:26Z">13:26 UTC, 15 Aug 2005</abbr>.