Is it possible for me to be admitted to Harvard College?

No, not studying history would not hurt you as an international student. However, Harvard is one of the most selective schools in the world, who turned down thousands of people with perfect records last year. Being ranked 10-15th/150 is just not likely to be good enough for them - if you aren't #1 or 2, they probably aren't going to be interested. Your SAT scores might make a difference, but given what you have told us, I would have to rate your possibility as a 2.