This section provides links to several online resources for history, which you can use to locate information about London and its environs in 1925 and information about rural Russia in the 1890's. This is not an exhaustive list of resources, but it should help you get started in yoru research.
The following links will connect you to databases that cover a broad range of topics in the humanities, sciences, and social sciences. They are not focused on a particular topic, but are often good starting points when beginning research, or to get a sense of the "landscape" of the literature on a topic. Each database has its strengths and weaknesses, and I strongly encourage you to experiment with them to see what you can find!