Help:Archiving a talk page
Sometimes particular topics generate a disproportionate amount of traffic on a talk page. It may be decided to remove discussion of those topics to a subpage of the talk page. To do this, create a page titled "Talk:Xxx/Yyy", where "Talk:Xxx" is the name of the main talk page, and "Yyy" indicates the topic of the subpage. Leave a note at the top of the main talk page linking to any subpages.
On talk pages that generate significant amounts of discussion, old discussions are often archived to keep the size of the talk page at a manageable level. An archive box with links to the discussion archives is normally placed at the top of the current talk page.
Please refer to Wikipedia's how-to guide for details.