Yeah, I had no idea what was going when I first saw that after trying to customize the calendar. I just ended up using a Google calendar app since I like being able to see what I have going on at a quick glance :)
LOL, too funny because today I had lunch with my younger brother, who's Lumia 900 is the reason I switched from iPhone to the 920. Anyway, I pointed this out to him and he wouldn't believe me, stating that "No, it tells you what the appointment is." When I showed him on my 920, he was able to actually make it out. "Wow, your screen is so sharp and clear, I see what you're talking about!"
Looks Latin to me. I'll have to look into this Google calendar app!