I was browsing the net last night and after about 30 minutes and I went off the net and turn my laptop off. Today when I was going through my History and clicked on the day it was all empty however I did not delete anything from History. All other days are still there with their History But as for yesterday the day is there but the histroy of it is Gone.
Why did this happen and how can I recover my History for last nights use.

I am not sure if/how you can recover your history but some computers have it set so that the history automatically deletes after a certain amount of days.
It should be in your internet options to change the amount of time history is kept for.