Description:
(Publisher) Harold Sidney Harmsworth, 1st Viscount Rothermere, was a notable British newspaper proprietor who played a key role in the development of popular tabloid journalism. He owned Associated Newspapers Ltd and was instrumental in shaping the Daily Mail and the Daily Mirror. Rothermere's media influence also included advocating for peaceful relations between Germany and the UK, although he later openly supported fascism and Nazi Germany, contributing to the growing popularity of those ideologies in the 1930s.