Jane Fonda just gave Sara Blakely’s kids a history lesson in 1950s-style workouts for women! The fitness legend stopped by the Spanx founder’s home and ended up demonstrating the bizarre, barely-exercise routines women were told to do back then. "When THE Jane Fonda comes to dinner at your house and proceeds to sit on your floor and show your kids how women were expected to work out in the 1900s…you have to document it. 🤣❤️" wrote Sara. "Thanks janefonda for permanently changing the game. 💪 #womenshistory" 📽️ : #SaraBlakely