An audit trail of all changes that are made to a Record is stored for your visibility.
For all changes, the audit includes:
The date the change was made to a Record.
The user who made the change to a Record.
The Field on the Record that was changed.
What the field of the Record contained before the change was made.
What the field of the Record was changed to.
Everyone has the ability to view audit history.
You can view this at any time by clicking the History button when you are viewing a Record.