Didn't the Roman calendar only have ten months?

Only way early on. For at least some purposes, though, the year was reckoned to start with the Spring Equinox, with February being the last month, so September was the seventh month.

There were a BUNCH of calendar reforms before Julian and some minor-ish after (before Gregorian, of course). It's super interesting - lunar calendars make so much sense for short term tracking but getting them to line up with solar calendars is way hard. Leap days, leap months, skipping months, big holidays that just don't count as part of the calendar, lost of variety in how to address the issue.

September=7, October=8, December=10--why did I not realize that until now?

Nov=9, as well.

Plus there's the two weeks that were removed in the 1700s to get things lined up (something re: George Washington, I'd have to look it up)

Before they were renamed after the Caesars, July and August were called Quintilis and Sextilis. It's a good thing that Augustus changed his name from Octavian; that would have made things really confusing for the Romans.

Pope Gregory. To correct seasonal drift.

Two weeks in a millenium is not bad. IIRC, that is why we don't have leap years in years that are divisible by 100 but not 400, to not have that particular drift.

Does anyone have recommendations for staying in downtown Las Vegas if the Golden Nugget isn't available?

Before they were renamed after the Cesars, July and August were called Quintilis and Sextilis.

If August was still called Sextilis, just imagine all the internet memes about the month--everyone would be wishing people a "Happy Sextilis", people would be getting getting married in Sextilis, and there'd be a ton of Sextilis pickup lines. It'd be like humpday but for a whole month.

It's a good thing that Augustus changed his name from Octavian; that would have made things really confusing for the Romans.

Ha! Yes indeed.

So, I have a cup shaped like this one [link] (I don't have that one, it's just an image I found that is pretty close) that I use for green tea. I was burning my fingers all the time so I looked up how to drink from it properly without hurting myself and learned that it's supposed to be on a saucer, so I have been using a small bowl for that (since seeing Mr. Holmes alerted me to the existence of saucers that are more bowl-shaped than plate-shaped, anyway) which is working well except I manage to drip tea from the cup into the saucer (which is right and proper, I think?) and then when I am reaching the end of my cup of tea I spill the tea from the saucer onto my body. Pretty sure I am not doing that part right. Maybe I'm not supposed to drink down to the last dregs?

I am so not feeling it today, thank goodness for buffistas and talk of cabbages and their comedic as well as super villain potential, and the hinkiness of the Roman calendar.