Why SameGoal?
Version History
VERSION HISTORY
Each document has a Version History tool that anyone with access to the document can view. This tool automatically tracks all edits made to the document over time and displays a chronological list of all changes. All collaborators on a document can easily see who modified the document, what specific changes were made, and when the changes were made.

Additionally, with all historical versions of a document saved in Version History, any changed or lost information can easily be restored.
Version history