53.

(and a special shared birthday wish to my equally-atomic blogging brother Andrew)

Collected Editions says:

March 13, 2022 at 5:05 AM

Happy birthday, Mike!
Thom H. says:

March 13, 2022 at 5:42 AM

Happy happy birthday! I hope you’re having a fabulous day!
Casie says:

March 13, 2022 at 10:18 AM

Happy birthday, Mike! :)
Allan Hoffman says:

March 13, 2022 at 12:04 PM

Happy Birthday, Mike! All the best for health and happiness.
William Burns says:

March 13, 2022 at 1:20 PM

Happy Birthday, Mike! Sorry you only got 23 hours this year.
Birdman says:

March 13, 2022 at 3:08 PM

Happy birthday to a fellow ‘69 baby!
stavner says:

March 13, 2022 at 3:29 PM

Happy birthday!
Kid Chris says:

March 13, 2022 at 7:38 PM

Happy Birthday, old man winter.
Billy says:

March 14, 2022 at 5:55 AM

Happy #53 Mike!
It was either that or “Signie.” says:

March 16, 2022 at 12:02 AM

[…] It’s because the atomic number of iodine is 53. […]