On The Gist, Slate’s Laura Bennett explains what it’s like to be gluten-free since the ’90s. She recently wrote “I Was Gluten-Free Before It Was Cool.” Plus, what should we do with all our RadioShack gift cards? We speak with our “gift card girlfriend,” Shelly Hunter, for ways to make gift cards and pre-paid cards go further. For the Spiel, we go deep on U.S. secretaries of state.

Today’s sponsor: Volvo. Have a month’s payment on Volvo and spend your summer doing the things that matter to you. Plus get up to five years of full coverage, including wear and tear. Go to volvocars.com/us.

Join Slate Plus! Members get bonus segments, exclusive member-only podcasts, and more. Sign up for a free trial today at slate.com/gistplus.