My earliest memory is my birthday party when I was either 2 or 3 years old. I was in my home in Chennai, India. All my relatives were there along with a few of my friends. The game limbo was there where we had to go under the rope without falling. One of my cousins and I were in the final. Thats about how much I remember. I think I remember this because I really loved having fun with my relatives and enjoyed every moment I spent with them.
I think my personality is basically the same. I'm still as fun loving and cheerful as I was then but I have obviously become much more mature.
My earliest memory is also a happy one in which I remember enjoying myself. Perhaps enjoyment level contributes to the duration a memory is remembered.