i dont understand for wat reason a website appears in my Google Chrome browser everytime, though i deleted the history and also deleted cookies several times and the most weird part is that i havent visited that website not even mistakenly...all other history is deleted than y not this website? can anyone answer?

Yes i faced this problem it happen because of virus.
install norton,macfee or kaspersky anti virus and scan your pc.
and reinstall your google chrome. follow the step your problem will be solve.
because is solve it.