The first years of covert interdimensional travel were rough. The first thing travelers noticed was the complete and utter lack of anything indicating which dimension they were currently in. By and large, they could rely on the memory of which dimension they had left and which they had aimed for. The travel tech was not perfect, however, and sometimes mishaps happened. Needless to say, some sort of technique had to be developed to determine which where they were
At first, travelers relied on simply asking a local about some established fact that differed between dimensions. There were subtle differences, such as the name of the month of July. This method had its drawbacks, however. Strangers showing up asking strange questions is seldom a recipe for success, with the caveat that it goteven worse when someone ostensibly familiar asked these self-same questions. At length, travelers transitioned to looking up pertinent information on wiki sites and suchlikes
At some point, this became a known practice. In an effort to foil unwary visitors, identifying information was ever so subtly altered on the relevant sites, leading to a covert game of editorial cat and mouse. The pertinent facts became ever more obscure and esoteric, causing entire fields of previously uncategorized domains of knowledge to spring into wikified being. Never before had the dukes and princes of the Holy Roman Empire been so thoroughly and so publicly documented
For a while, this caused no small amount of havoc for the collective consciousnesses in several dimensions, until publishers on all sides declared – without ever communicating it openly – that such editorial practices were off-limits. Not wanting to upset the interdimensional archival community, the travelers moved on to even more covert ways of circumspect navigation
More longer friend see that sky? 