3RR 
Please refrain from undoing other people's edits repeatedly. If you continue, you may be blocked from editing Wikipedia under the three-revert rule, which states that nobody may revert an article to a previous version more than three times in 24 hours. (Note: this also means editing the page to reinsert an old edit. If the effect of your actions is to revert back, it qualifies as a revert.) You have done this on multiple pages. It is considered vandalism. Please use the talk page. Thank you.