February 27th, 2006
For my final project, I plan to make maps (or just one for now, depending on how hard this actually is going to be) of the ethnic makeup of neighborhoods in Brooklyn, NY at various points in the late 19th – 20th centuries. I always marveled at the constant rotation of ethnic groups in Brooklyn…any given neighborhood may have been an Irish enclave in the 1870s, then Jewish, then Italian, then Puerto Rican today. So I thought it would be interesting to gather historical census data and identify the dominant ethnicity for the different neighborhoods at select times, use colors for each group, and link some maps together so the viewer can see how the colors move around on the map. That’s the basic idea, anyway.
After surfing around, it seems that no one has attempted this yet, certainly not in visual form. Most sites, and histories in general, track one immigrant group, one neighborhood’s development, or address only one point in time. My maps would give a broader perspective of change over time. We may understand that New York is always changing, but it’s hard to conceive of it, and of its scale, especially through text alone. Visual, moving data would be much more striking, I think.
I’m not sure it would make sense to just plop these maps on a web site for the sake of a new site, though. I do not intend for these maps to be in-depth and research intensive, to tell anything about immigrant groups other than their movement. This does not mean, however, that I don’t hope to appeal to a serious/historic/professional audience. So much attention is focused on these immigrant groups in Manhattan (especially the Lower East Side), that their movement out to Brooklyn (and presumably their subsequent or corresponding socioeconomic rise) has largely been overlooked. Researchers might benefit from the maps as a quick perspective on how to pursue further information about their topic/group. This broad overview also would appeal to a general audience. Brooklyn nostalgia and genealogy seem to be very prominent in the minds of the general public, who most likely would appreciate a quick visual display of population change in Brooklyn (especially if the viewer is descended from a particular group). Perhaps, then, these maps would be most effective if they were linked to or available on the most prominent local sites, such as the Brooklyn Historical Society or the Brooklyn Public Library. These are ideal locations because they seem to sit at the gateway to either popular interest or serious research.
First I looked at Brooklyn sites that offer information about the history of various neighborhoods. There are several, but they tend to be fairly general, summarizing neighborhood histories in pleasing narratives that would most likely appeal to the general public (as opposed to academics). They also play heavily on nostalgia, as evident in their tone and their assumption that the reader is already somewhat familiar with the neighborhood. The Channel Thirteen site is a good example, and it includes an interesting (and somewhat interactive) map of the independent towns that came together to comprise modern Brooklyn. One of the more unusual sites lists all of the neighborhoods and gives information about some of them (but not all) from a 1939 WPA guide to Brooklyn. For the most part, though, the brief histories on this and other similar pages, such as the Brooklyn Public Library’s, only mention ethnic groups who filed through the neighborhood and give vague decade estimates. They do at least establish the ethnic groups once present in certain neighborhoods, though, so sites like these could serve as helpful starting points so that I’ll know where or how to look for more detailed data.
The general history sites also clarify important events in Brooklyn’s history that may have had an impact on immigrant movement. The opening of the Brooklyn Bridge in 1893 and the Williamsburg Bridge in 1903, for example, encouraged thousands to escape the crowded Lower East Side for more space and lower rents in Brooklyn. This timeline in particular will be helpful in augmenting the narrative histories. The timeline is also noteworthy because it is one of the few features I found among all the general histories (the inclusion of personal stories being the other); its uniqueness highlights the fact that all of the other general history blurbs/summaries are pretty much the same.
I also looked more specifically for sites with maps of Brooklyn. I found several that delineate the neighborhoods: some for tourists and others for more official municipal purposes, such as transportation and parking maps. These would seem to serve people with a specific need, such as providing directions to get to certain places. Users, then, probably would be searching for a specific kind of map and would not be interested in neighborhood or historic information. Therefore none of these maps were very representative of what I’d like to do, since I am looking to attract a history-oriented audience (be they amateur or professional). Still, they are good models of what not to include (such as modern roads or facilities).
Moving beyond these basic maps, I found several that are data-intensive and come closer to what I intend to make. Interestingly, if I wanted to hire someone to make my historical maps, Community Cartography is equipped to do it. They have already amassed a wealth of data on New York City and make in-depth displays for government offices and other private clients. Here is an example:

[sorry, hopefully I will get this in here at some point]
This map was most likely made in ArcGIS, the program I’ll be using (once I learn how). In this program, you can combine base maps (this company has city blocks, streets, tax lots, and satellite images, for example) with data sets (census, ethnic, poverty, real estate, transport, political, etc.). I would most likely layer historical census data about foreign-born populations on a base map showing zip codes or community districts because I have already seen these in map form (the base maps, I mean, not the historical data). “Neighborhood” seems to be a more informal term which varies, so I would probably label them myself, apart from the base map.
I then looked for census data and maps geared specifically to displays of this kind of information. I found the NY GIS files from the 2000 census. These are great because you can just take the population data set (for free) and import it into ArcGIS to combine it with a base map. This will be relatively simple for a contemporary map. However, there are only census files for 1990 and 2000. I’ll have to input my own historical data (somehow!). This site does include the total population of Brooklyn from 1790 on, so that might come in handy, especially if I’m dealing with data in percentages.
Finally, the New York City Department of Planning offers the best example of exactly what I want to do, only in book form (see Chapter 4 in the summary) and with 2000 numbers. In addition, they have broken down the data for each ethnic group into separate maps. However, these maps display variation in the population by using shading (the darker, the more heavily populated by the ethnicity). I would rather keep my maps simple, especially since I would like them to be user-friendly for the casual browser rather than the serious statistician, so I would probably use only one color for each group, if it were, say, more than some percent (50? 70?) of the total neighborhood population.
The problem with all of the data maps is that they are too complicated for my purposes. I would worry that they might seem daunting or alienating to a general audience, especially when most people are not accustomed to thinking of history in statistical terms. From my web surfing, therefore, it is evident that very few, if any, sites straddle a popular and an academic audience. They seem to appeal either to one or the other, but not both. My historical maps might help bridge that gap by making serious historical data seem quick, easy, and even mildly amusing.