Which invention in the early twentieth century may have california resident thomas watson communicate instantly with his mother who lived in new york

They were known for the invention of the telephone. As the recipient of the first telephone call – although coming from just the next room – his name became the first words ever said over the phone.

What isn't a key feature of a political cartoon would be alliteration.

It's true that most poltiical cartoons involve some sort of humor, be it good or bad. They also involve key satiric notions and make parodies of different events or people. It isn't true, however, that they always include an alliteration.