912

That's Dewey Decimal for Cartography.

To the extent that the graticule (latitude/longitude, UTM, or whatever system you're using to grid out the earth and map it) is a "neutral" framework designed to hold whatever information you want to hang on it, it's a lot like other knowledge frameworks.

I immediately think of library shelving systems. You have books on any conceivable subject (and you need to leave space in the system for books based on subjects you haven't thought of yet). Dewey Decimal System, Library of Congress, or simple alphabetization... all these are meant to present a "neutral" framework.

Well, of course they are not neutral. Melvil Dewey had Big Ideas, and, well, he was a 19th-century American. A quick glance at the basic classifications of the system show all of the non-Christians shoved into 1/10 of the religion section, the non-European languages shoved into 1/10 of the language and literature sections, and so forth. Interestingly, the geographically-organized sections are the most democratic: a full section for every continent.

My qustion is: Does this structure cause users of the systems to become biased? If your library has as many books about Islam (297) as about Christianity (210-289 inclusive), will the reader be affected by the Islam's classifications having longer numbers than the Christianity's? I think the reader would look more at the numbers of books than the numbers on the books.

What bias does a rectangular grid provide? Well, it certainly has affected how the middle of the United States (and Western Canada) were developed, a vast sheet of graph paper laid out on the landscape. But this is a case of the graticule being applied to the land, like a library giving the exact number of shelf inches to each Dewey classification.

Jefferson's gridding of western territories is part of a longer tradition of rational development. Penn's Philadelphia, the nine squares of New Haven, the Mason-Dixon line, the Treaty of Tordesillas line: from the beginning of the European colonial era, people tried to impose their will (or God's will) on the landscape using lines and grids.

The problem any rational book-filing system runs into is the multiple-entry problem. If you have two authors, which do file it under? More importantly, if you have a book about religion and science, does it get filed in the science or religion section? Not just libraries have this problem. Why do some books get filed into genre fiction shelves in bookstores while others get filed under literature?

In geographic terms, a place can have multiple identites, which a map may not communicate. I've worked this over in the Neigborhoods of Minneapolis article on Wikipedia: Some major neighborhoods like Uptown are not officially defined by anyone, while others have primarily political significance, and still others (like Linden Hills) have both informal and formal recognition. On a more politically dangerous note, two warring nations may claim the same land as "homeland." Of course Kosovo and Israel/Palestine have more issue than "the map," but the absoluteness of boundaries on modern maps surely isn't helping.

But this is different than the underlying grid: territories are accurately mapped using the grid, but the two territories above are not defined by the grid. What would the same sort of problem cross-discipline books face loo like in geographic terms? I'm imagining a surveyor for some large construction project being told it has to follow a township line, come hell or high water. And there's this canyon in the way. It would be much simpler, cheaper, easier and less destructive to shift the project a mile west for a little while. And this is usually what happens in the real world, where dollars are more important than grid lines.

Even this doesn't work as an exact parallel. The classification of ideas and fields (like the my old favorite, the ontology of maps) occurs on a surface that is non-continous. Any given spot on a latitude-longitude grid is unique, just as a call number in a library is unique. But while a subject classification reflects a position on a conceptual framework which is non-absolute, the latitude and longitude are based on specific measurable attributes. Abstract attributes, but similar to (for example) title and date of purchase of a book.

But all this kind of puts what Steven and other cartographic critics have said into the realm of the ridiculous, which was not my initial intent. Clearly the grid represents a way of looking at the world that disturbs some folk. Heck, it disturbs me sometimes. What is it then that is disturbing us? I would argue it is not the grid itself, but its inappropriate intrusion into the physical world.

More next time.