Allen, you have achieved a note worthy milestone. Like when you got your driver's license, became old enough to drink, reached the age when you were no longer carded when you bought a six pack and now you have to show your license to get the senior discount. Wait a few more years like me, when they no longer ask, they just nod and give you the discount automatically. Don't however, look up your high school on the internet, like I did, and read "In Memoriam". That really brings it home.
Happy Birthday and many many more to come.