Ayude doy coronita al que me ayuda para hoy​

Brainliestttme : ) what caused the first opium war? chinese confiscation and destruction of british opium chinese support for the boxer rebellion british efforts to increase opium prices british attempts to force china to accept opium as payment

What did the us civil rights movement gain new momentum after world 2

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.