dateline
n.the date and place at the start of a news story. It tells you where the news was written and when it happened.
n.the date and location of a news story's origin, typically appearing at the beginning of the text. Often used to indicate the source of the information or the time it was filed.
“The reporter included a dateline at the top of the article.”
“Because the story was filed from London, the dateline appeared as 'LONDON, England' followed by the date.”
“While digital platforms often display the publication date in a header, the traditional dateline remains a vital tool for journalists to establish the geographical and temporal context of their reporting.”
From date + line.
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.