How can I set the dateCreated attribute on an EntryModel? I've tried this but it doesn't seem to be working:

$entry = EntryModel::populateModel(array(
    'dateCreated' =&gt; DateTimeHelper::formatTimeForDb($someTimeStamp),
    'sectionId' =&gt; 1
    'typeId' =&gt; 1
));

craft()-&gt;entries-&gt;saveEntry($entry);
The dateCreated, dateUpdated and uid columns are more internal Craft auditing columns that Craft manages for every row in every table.

Maybe what you're looking for is the postDate column for entries, which you can set a custom value to.