Minecraft wiki entry for Village_chaining, associated text: Village chaining is the process by which one can move village centers abnormally close to, or within, each other. This is a process that is commonly used in making highly efficient and compact iron farms. It was first discovered in Java Edition 1.4.2, and has been used till Java Edition 1.13.2. The process was originally discovered and introduced to the majority by TangoTek.