Startling, indeed

Just found out that my maternal grandmother who passed away in nov 1983 (5 months before I was born!!) was registered as a citizen of Singapore on April 27, 1971!!!! My birthday date! Except for the year....Gads!!! This is so weird....We've never seen each other but according to my mom, I have many habits like her and now this registration date!!! OH MY GAWD!! What are the odds?!