In the year 1940s, animators in Britain were animating public information and propaganda films.
Explanation:
Experimental films were made by animators back in the year of 1900s especially in the country of Great Britain. One of the first animated experimental film was made in Great Britain only. Public information was the one with which the experiment of making an experimental movies was done to make viewers understand he message.
Certain apps like stop motion and live action were used to make these experimental films. Giving an animated touch to these experimental movies was a great move to attract the viewers towards the message of these movies and make the reader understand the theme of the movies.