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A herd of British post boxes outside their natural habitat
I joined Wikipedia in November 2007, when I found that some Wikipedia articles around model theory contained incorrect information, used inconsistent terminology, or were unnecessarily duplicated with a model theory version and a universal algebra version competing for the few knowledgeable editors. Since my arrival the situation has vastly improved, but obviously there is still a lot to do.
I would like to get more structure into the existing articles on basic definitions in model theory and universal algebra, so they become a solid basis for further extensions. My work area for this is here. The worst part is currently everything that is related to Boolean algebra.
Other typical areas of activity for me are obscure historical topics that somehow catch my fancy, most notably pigeon photography and the history of card games.