# History Every change to a node records in `nodes_history` what the node was before it: title, [Markdown](page:4402) body, sort key and place in the tree, for a deleted node too. The trail shows how a section developed. Restoring is manual. An earlier body found in the history is copied back into an existing node with `patch_node` or `update_node`; a deleted node is created again, under a new id. --- ## Links here - [Wikilayer manual](/smee-again/wikilayer-howto/en) --- [All pages](https://wikilayer.org/smee-again/wikilayer-howto/en/index.md)