Hello all! I wanted to share one thing I have been working on which can benefit anyone with interest in Poland. I am someone who finds maps incredibly useful for many purposes in genealogy, either to track ancestors, track surnames, etc. Nice maps which provide a historical overlay to present day boundaries are very difficult to find, if they have even been created.
Poland was lacking in this area, so I have decided to do it myself. Granted it is helping me immensely with categorization with the Poland Project (differentiating Prussian Wielkopolskie from Russian Wielkopolskie.) It all makes much better sense, especially since I find Russian Empire in Poland (Congress Poland) to be heavily underdeveloped online for nonPolish and nonRussian speakers.
Take a look here: https://www.wikitree.com/wiki/Space:Poland%2C_Historical_Map_Overlay There are more overlays within the link (with/without labels, Russian Empire and Galicia innards.)
I am always open to receiving feedback. I have not yet done any homework for the innards of Prussia. That will be something I will work on down the road after I tackle other things on my to-do list. Enjoy!