Categorizing features - grouping them roughly by theme - is one way to expose patterns and isolate discrepancies.
Use the filters below to sift through dataset. In just a few clicks, you will see that there are dramatic differences between what existed and what was planned for Russian towns, and that the differences between the kinds of information included in the legends and indicated graphically are equally striking.
What stands out to you? What patterns (or exceptions) seem significant? Which inspire you to ask questions dash off in search of answers?
(Note: The dates reflect the year in which a plan was approved by the imperial government, and not the year in which a specific feature was built or created.)