Let's say we have searched for some person frequently for a couple of days on Facebook (who may or may not be our friend). When we start entering the person's name (or even the starting letters) in the search bar next time, their profile will be automatically shown in "suggestions" below. This is same in the case of groups/pages anything like that.
It means that Facebook stores our "search history" using some method.
I have two questions based on this:
Is there any hack or something we can use to clear our private search history on Facebook?
In any case, if Facebook stores whose profiles we have visited, can we use this information to know who visit our profile frequently, via any hack?
If we have to use something like Graph API or anything like that, please outline me the process.