Please help taking test Will give brainlest

What are some events that took place in Washington D. C on Veterans Day? What is the meaning or significance of these event?

The economy shifted from to industrial during the first industrial 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.

In this activity, you’ll read and analyze the song “the unreconstructed rebel,” written around 1866. you’ll draw conclusions from this song about southerners’ feelings toward african americans after the civil war. part a who is the speaker or the singer of the song? how do you know?