Have we come a long way, baby?

From Huff Post:

“The art of conversation consists as much in listening politely as in talking agreeably; therefore never interrupt anyone who may be speaking to you, and at the same time do not let your eyes wander to other objects, but keep them on the speaker.”
—Manners of Modern Society by Eliza Cheadle, 1875

This was pre-manspreading:

“Instead of spreading out your dresses to exclude strangers from a seat...let us offer the seat cheerfully, and gracefully, and commence a conversation with the new-comer.”
—A Manual of Etiquette with Hints on Politeness and Good Breeding by Daisy Eyebright, 1868

1918

“Never boast of your birth, your money, your grand friends, or anything that is yours. If you have traveled, do not introduce that information into your conversation at every opportunity.”
—Routledge’s Manual of Etiquette, 1875

Manners are a sensitive awareness of the feelings of others. If you have that awareness, you have good manners, no matter what fork you use. - Emily Post