Rachel joins Nick's mother to tell her that she turned down his marriage proposal because she knows his mom does not approve due to her immigrant background.

Abraham Lincoln makes reference to Greek mathematician Euclid, who states that things which are equal to the same thing are equal to each other.

Barney is at his locker while the other kids play with their bots. He gets scared by one of the bots, which causes everyone to look at him. Another classmate then asks him if he has a bot yet.  

Henry Ford explores the history of barnstorming and how the women part it became historical figures that represented an era of old entertainment. This proves that women too have taken part in redefining the roles of men and women in society.

Barney has a conversation with his family about why no one is at his birthday party. He explains that people would have come if he had a B Bot, but his family cannot afford one.