When speakers use verbal cues what are they trying to achieve

How was the declaration of the rights of man similar to and different from the declaration of independence

Look at the painting the lictors bring to brutus the bodies of his sons by jacques-louis david (1789). the most likely message this painting sends to french citizens is that one must be prepared to sacrifice their own children to preserve france. loyalty to one’s country stops short of sacrificing one’s own children. brutality is an integral part of revolution and the reign of terror. no one is immune to death, not even the leaders of the revolution.

The rise of advertising in the 1920s. i am good with seeing how advertisements shape the roaring twenties and how it developed a new way of life through modern days. but i am not sure what the details of advertising in the 1920s were. if possible can you send me links (preferrably credential links) to sources that maybe show like the first company to start advertising through the radio, how advertising benefits (statistics graphs), etc.