How to get rss old items like google reader

Question

I'm creating RSS reader application. I need to get any linked rss old items. For example some web rss result count is too less. My application check time range is too long. Sometimes loss some news.

How can i get rss old items?

When scrolling down on the google reader,reader shown previous items.

Answer 1

I guess, Google saves these items and can display them, even if they are no longer in the feed. Google Reader might even show you items from before you added the feed, because the feeds might be stored globally and not per user.

Answer 2

try this http://www.google.com/reader/atom/feed/{complete url to rssfeed without {} }?n=5000