This would be immensely beneficial to people moving over old posts from another system. As mentioned here:
Nice feature, book me in.
It would be best to create a custom date field for this since I don’t foresee editing of the default date values any time soon.
Yes! This is something I need.
Need this especially with the new RSS feed feature
Same here, the new RSS feature is great but without being able to change created dates it really hinders the ability to sort any list of blog items.
ability to edit created date would be great!!