Calling All Family Historians: Ideas for New York Times Column?

The New York Times has asked me to be a guest columnist in May and June while one of their regulars is on vacation. This is a bit more intimidating than when I actually have an idea for a column and approach them, so I am trolling for ideas from fellow historians. Are there any interesting, little-know pieces of data or information about families or gender relations in the past that might intrigue readers of the Times? Any counter-intuitive or surprising trends or patterns that contradict conventional views of how family ad gender relationships "used" to be?  If so, send me them (via email, Twitter, or by leaving a comment below) along with your preferred citation, and I may be able to highlight your work in the New York Times.