We're taking a little break over the holidays to look back on some of the best Retropod episodes from 2018. Today, doughnuts. They aren’t just delicious. They also helped America win a war.

The day Martin Luther King Jr. died

Retropod is a show for history-lovers, featuring stories about the past, rediscovered. Host Mike Rosenwald introduces you to history’s most colorful characters - forgotten heroes, overlooked villains, dreamers, explorers, world changers.