Today my family and I went to the Smithsonian Museum of American History. It was really awesome. Among other things, we saw the original star-spangled banner which flew over Fort McHenry during the defense of Baltimore in war of 1812 and inspired the song by Francis Scott Key. It was very moving. The other thing that really struck me was a house.
This house was amazing. Not because of any single feature of the house, but because of its history. It had been built back in the 1700s before the Revolutionary War, and eventually been disassembled and moved to the museum from its original location in Massachusetts. The museum had set up the house with different key rooms restored to their original condition - and as you walked around the house, each room had been decorated to show a different period from the house's history, along with associated artifacts and portraits of the people who had lived there. It was a whole narrative of American history created through the use of this one house.
I can certainly see how this ties back to my post about focusing worldbuilding efforts on a single artifact (in this case a house). The other thing it makes me think of is how this house was still around in this neighborhood in Massachusetts up until the 1960's before it was moved. The same house. The same place. 200 years. Four separate families.
Successful objects and technologies endure.
I mean, after all, did you use a fork today? What about chopsticks?
I saw this house, which must have stayed around while some things changed around it and others did not. I also visited the Capital, which has been around looking pretty much the same for an awfully long time with things changing around it.
The old and the new coexist everywhere. I noticed this very keenly when I lived in Kyoto, Japan for a year, but it's true of your home too. Your fancy new photo printer uses paper. Paper is pretty old. The way carpenters work wood to build houses has been innovated, but probably not that much. Nails have been around for hundreds and hundreds of years. Mirrors have been around for thousands, though their current form is different.
The same should be true of your world.
Take a look around it. What is old? What is new? Who lived in this house before its current residents? Is there any evidence available for that? Is there anything that has had one meaning for one group of residents that has a different meaning for a later group?
I must cackle when I say that I do this for Varin. I have secrets up my sleeve (quite a number of them). The old buildings, like the Eminence's Residence and the Imbati Service Academy, didn't used to be called what they are now called, and were used similarly, but by entirely different groups in Varin's past. There's a reason why the capitals on the columns of the Academy are shaped like flames. There's a block of red stone on the threshold of the Academy's front gate which reads, "Cross this threshold with a pure heart, and the Mysteries shall be revealed." The Imbati mark, the lily crest tattoo, didn't always used to be a caste mark, and wasn't always worn on the forehead.
It's not only interesting, it's fun. Mwa-ha-ha!