Is History A Science? O.o

We humans tend to define History as, "the study of past events, particularly in human affairs." However Science tends to be defined as, "Knowledge about or the study of the natural world based on facts learned through observations and experiments." Science unlike history can be predicted on the whole however, who are we to predict what will happen in the next 2minutes and if it goes down in the historians book? I feel like scientists have the edge over the historians, as the historians are always dealing with information that could be incomplete, as we loose a lot of information about the history every minute that passes from the incident itself.
As history rotates and is energised around the evidence methods like books, internet, etc, this show the truth or sometimes only half the truth. However science which is straightforward can be measured   but history cannot. You can never know for sure if a event actually happened or is true until you experience it FIRST hand, and that is hard considering that the event has already passed. But in history everything can be re evaluated and analysed to figure out what the real story is! In conclusion I believe that science can be history, but history cannot be a science, as a great historian once said,
"History is written by the victors." Winstone Churchill