Dating essentially replaced the practice of calling which was the primary way of courtship before the mid-1920's.
When a man "calls" upon a woman, he usually shows up at her house during an "at home" session and presents his card to the maid who then gives it to the young lady.
ORIGINS OF DATING Dating is definitely an "American phenomenon." Few other countries carry on this practice with as much fervor as Americans do.
One of the conventions they put a new spin on, and consequently revolutionize, is the idea and practice of dating.
The 1950's set up precedents in dating that led to what many consider "normal" dating today.
So they initial shyness of young couple can be eased away by the presence of other company, especially if the double date was a "set-up" or a blind date for one couple.
After double dating, you would naturally move onto single dating.
When calling was practiced, the female in the relationship held most of the power because men came to see house with her parents present.