Leave Them Hanging
In the 1930s, parents in London would hang their babies in cages outside their windows to give them some fresh air. The use of baby cages was not limited to London and was actually quite common in cities throughout the world in the early 20th century. The cages were typically made of wire and could be attached to the side of a building or suspended from a window.

The belief was that fresh air was good for babies’ health and that hanging them outside in a cage was a safe and effective way to provide them with fresh air. But, the use of baby cages was controversial and was often seen as a symbol of the crowded and often unsanitary living conditions of urban areas.