Why does Lease mean in the first paragraph when she writes “their salvation lies with themselves”

What does this picture revesl about the the work of peasent women

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.

The most important units of the english armies which fought during the hindred years war were composed of