1960s: Secretaries in Waco, Texas - try not to talk about yourself
To be a good secretary in 1960s Waco, Texas you had to follow a lot of rules. Making sure not to talk about yourself was one of them – along with controlling your impulse to meddle in other people’s business or make sarcastic comments. If you could master all of these, you would be well on your way to becoming a secretary, who needs 100 words-per-minute.
1960s: Female cabin crew - passed your best at 32
Female flight attendants in the US had to fit some very specific criteria. Just look at this advert for Eastern Airlines in 1966: "A high school graduate, single (widows and divorcees with no children considered), 20 years of age (girls 19 1/2 may apply for future consideration). 5'2" but no more than 5'9", weight 105 to 135 in proportion to height and have at least 20/40 vision without glasses."
In the US, school teachers were forced to take unpaid maternity leave when they were four to six months pregnant until well after the birth. Fans of the policy argued that the pregnancy might distract students or the woman might not be able to concentrate.