View or clear your reading history in News on Mac
When you read a story in Apple News, it’s added to your reading history so you can easily find it again. You can view or clear your reading history at any time.
View your history
In the News app
on your Mac, click History at the bottom of the sidebar (if you don’t see it, click 
in the toolbar).Stories that you’ve read are listed on the right. Icons indicate stories you loved, disliked or saved. To view a story, click its title.
Clear your history
In the News app
on your Mac, click History at the bottom of the sidebar (if you don’t see it, click in the toolbar).Click Clear in the top-right corner, then choose one of the following:
Clear History: Clears your reading history.
Clear Recommendations: Clears the information that’s used from your reading habits to recommend stories. This option can change the types of channels, topics and stories shown in Today and other feeds in Apple News on your Mac and your other devices.
Clear All: Clears your history and recommendations.
When you clear your history, the identifier used by Apple News to report statistics to news publishers is reset. You can reset the identifier at any time by choosing News > Clear History > Reset Identifier. To learn more about the identifier, choose Help > About Apple News & Privacy while using the News app.