How it started — the first 750th Moonday cake
On Friday, September 4, 2026, I was at lunch with friends, and we got talking about age. People count a baby’s age in months — “she’s 18 months” — and then somewhere along the way everyone switches to years and the months disappear.
Just for fun, I worked out my own age in months. I was born March 10, 1964, which meant I’d turn 750 months old the very next Thursday, September 10. So I said what anyone would say: “Let’s have a party.”
On my actual 750th Moonday, Thursday, September 10, I brought a cake to work that read “Happy Moonday 750 + Counting.” The next night, Friday, September 11, about twenty friends showed up to what was probably the first 750-month birthday party ever. My daughter told me she’d told her friends about it, and they said I was a pretty cool dad.
Two days later I started building this app. Any date can be a reason to celebrate, or to remember someone, if you do the math.
— Ben