if you are 115 today... I'm a few years short of that.... and your Dad was 115 when you were born then your Dad was born in the year 1789. That was the year George Washington delivered his 1st inaugural address.
If you were born today, (probably not), and lived to be 115 and had a kid who lived to be 115 said Kid would die in the year 2249..... the same year the NFL goes thru an entire news day without mentioning Tom Brady. - JamesJM