Here at American Baby, we usually get it right -- but we can't stop laughing at our biggest bloopers from the past 75 years. Yikes.
THEN: There is no necessity for trying to entertain a baby. You will only tire him out and spoil his day. June 1946 NOW: Smile and laugh with your peanut. He'll light up from your attention.
THEN: You can rent good ultraviolet ray lamps at low cost. When the baby arrives, you two can bask in the indoor sunshine on dark days and in the winter. February 1957 NOW: Sun lamps, seriously? Outside, be sure to seek shade and use sunscreen.
THEN: Depending on the state of his nervous system, your husband can give you reassurance during labor. But he should not be present for the actual delivery. January 1965... Ha!