The birth of the disposable razor isn't just about shaving. It also involves socialism and Niagra Falls. Read More...

In the last 20 years, the prevalence of food allergies in children has increased by at least 50 percent. We talk with two food allergy experts about the possible causes and what researchers are doing about it. Read More...

Rats and humans have lived together forever. So why do we keep trying to kill them? We take a look at whether rat extermination is a good idea after all. Read More...

We take a look at a few American dreams; from Hershey’s chocolate to the development of computers — and beyond. Read More...

With events at the southern border on everyone’s minds, we revisit the histories of immigration and equal rights, and examine how childhood trauma can cause lasting damage. Read More...

Up until the early 20th century, it was relatively easy to immigrate to the U.S. What changed? Read More...

More than 2,000 children have been separated from their parents at the southern border of the U.S. How might that kind of trauma stay with the kids long after they’ve been reunited with their families? Read More...

Human rights are hotly-debated, but when did that debate begin? UCLA’s Lynn Hunt talks about what might have been the formative moment for human rights - and how we’re constantly changing our definition of equality. Read More...

This week on Innovation Hub, we talk about how algorithms might be helping kids in dangerous situations, the broad effects of nostalgia, and what happens when the worlds of libraries and journalism collide. Read More...

There are four million referrals to child welfare services in America every year. How should cities and states decide which ones to respond to? Read More...