How to delete Skype history? How to delete Skype history?

I saw two methods declared: (1) delete Skype application data and/or (2) reinstall Skype.

But both methods are compromised by an idea and saying, that Skype history is (maybe partially) stored on Skype server. 

If so, then History will resurrect after both actions.

So, my question is: how to really delete history?

Also I need some explanations about the cases where history was resurrecting. For example, this can be because parallel client was holding history...
Go to Settings - Apps, find Skype in list of installed apps and click on clear data button and clear cache. 


  Also I need some explanations about the cases where history was resurrecting. For example, this can be because parallel client was holding history...


Skype archives your chats for you and stores them locally on your computer (or device), if you have enabled this option. Chat histories are not stored anywhere on the Skype network. source