When i create a "content type" i disabled showing "author name" and "posting date". Then i created nearly 100 nodes from that type of content. Now i want to show posting date in node content.

When i edit the node and enable showing post date. Everything OK. Post date is shown. But when i edit content type and enable post date, i can't see posting date in content page.

It is hard to edit all nodes to show post date. Is there a better way? Thank you very much.

When I create a content type, I disabled showing "author name" and "posting date"; then, I created nearly 100 nodes from that content type.

Now I want to show the posting date in the node content.

When I edit the node, and enable the posting dates to be shown, everything is OK; when I edit the content type, and enable the posting date, I can't see it in node page.

It is hard to edit all nodes to show the posting date. Is there a better way?