What section on the notes tab, shows the history of the work documented on the record?

An 'Audit Log' is a broader, system-level feature for tracking all data changes for compliance purposes, distinct from the user-facing 'Activity' section on a record's Notes tab.

While an activity stream presents events in a chronological order, 'Timeline' is not the specific, common name of the formatter used for this purpose on a ServiceNow record's Notes tab.

'Journal' refers to a type of field (e.g., Journal, Journal Input) used to record free-form text, like work notes or comments, but it is not the section that displays the aggregated history of all documented work.

'Diary' is not a standard term used within ServiceNow to refer to a record's history section.

The 'Activity' formatter (often referred to as the Activity stream or Activity Log) on the Notes tab displays a comprehensive, chronological history of all updates made to a record, including work notes, comments, field changes, and system events, making it the section that shows the history of documented work.