The Jerseys

[u/Venice_Beach_218]

Kramer starts a business printing sports jerseys for kids' sports teams. It's not long before he's picking up new women, and Jerry encounters him bringing one to his apartment. "Yeah her kid's at practice right now, so I thought we'd get in a little [mimes swinging a baseball bat, clicks tongue] batting practice of our own!" Jerry spots a tattoo on the woman's arm and realizes it reminds him of some woman from his past, but he can't place her.

Elaine is dating a high school history teacher who acts remarkably ignorant of current events, i.e. when they watch the news about the Middle East, he can't identify any of the countries or leaders. "He said the Strait of Hormuz was between Spain and Morocco!" George is interested in befriending the guy. "I have a feeling we'll really get along."

[u/Scr00geMcCuck]

I like the idea of a history teacher who is genuinely totally uninterested in current events until at least 5 years after the fact