I ate a lot of calzones at a little Italian restaurant in Grafenwöhr Germany. 40 years later and I still remember that place fondly
Oh yea. I still have sweet dreams of the calzones I had in Hanau, GE.
Within a week of arriving in Saarbrücken, Germany, where I would spend two semesters at Saarland University in 1971-1972, I had eaten at every Italian restaurant in town--and they were all run by Italians, not East Asians, Middle Easterners, or white guys of Trans-Alpine heritage, as are many Italian restaurants in Los Angeles these days.
However, calzones hadn't yet made it onto their menus. The dish I usually ordered was spaghetti Bolognese.
The first calzone I ever ate was at a pizzeria in Santa Monica, Calif. around 1980. It was called a football sandwich because of its shape.