October 13

The day a short person was born, if you were born on October 13th, you are 100% short no questions asked. You probably get called short by all your friends and you don't care because you have been called short at least 500 times already.

Person 1: Hey did you know today is October 13th?
Person 2: Wait... That means its y/n's birthday!
Person 1: Wait! You mean the one that's shorter than a dwarf!?
Person 2: Yup... Thats the one alright...