Coming from a different culture myself, I wasn't aware of concept of "Advent Calendar" until 2014 when the first QEMU Advent came out. Think of the term "adven

Coming from a different culture myself, I wasn't aware of concept of "Advent Calendar" until 2014 when the first QEMU Advent came out. Think of the term "advent" as "the arrival of a notable person or thing" — in this case, it's a thing :-) That said, I don't see any issue in using that term here. Even if one is not religious (I'm not), they might appreciate the cultural aspects of it. Furthermore, the Call for Images[1] clearly says this in the postscript: "QEMU Advent Calendar is a secular calendar (not religious). The idea is to create a fun experience for the QEMU community which can be shared with everyone. You don’t need to celebrate Christmas or another religious festival to participate!" [1] https://www.qemu.org/2020/11/26/qemu-advent-announce/ https://www.qemu.org/2020/11/26/qemu-advent-announce/