10 Digit Answer In Riddle

Riddle: I was born a long time ago and have since grown to be respected amongst my peers. I have 2 younger siblings who also make my family proud. My father, a greatly respected figure, taught us many values to keep us focused and aligned. It was very important for my mother also, to instill in us a sense of Purpose and to teach us to be Humble in life despite our successes. "For as long as you've been around, the number of things you stand for, and the trinity that symbolizes you" those are the things that matter, my father always said. Understanding who I am is the key, my story isn't fiction, it is grounded in reality, under most of your feet. Who am I?