Who am I?

I am irresistible, I am invincible and you cannot deny me. Nor can you ignore me. Yes whatever occurs in this world, is a function of me. Every equation has to include me or it does not work. I can turn solid into liquid and gas to mass. When nepolean had lost his war, he only needed me, to turn it around. Something is called "history", because it does not have me with it. Present is a synonym of “gift” because I always accompany it. I have seen ages develop, grow, mature and even destroy themselves before me. I am known as the best teacher. I am the worlds’ best “gift” to a dying man. I am needed everywhere but only a few know my worth. Who am I?


I am the realization of importance, of judgment. I am the example of constant untiring flow. I am TIME.