Similarly, SM Stirling tells us that Nantucket was "antique-happy" (OnThe Oceans Of Eternity, p. 42) even before it time traveled. The meeting room has:
an oval mahogany table; sideboy; armoire;
flowered Victorian wallpaper;
pictures of whaling ships;
souvenirs like a shark-toothed wooden sword and an Iberian idol;
just one post-Event painting.
It must be easier to accept that you have traveled into the past when you are already surrounded by it.