Want to learn and share more about local Black history? Start with Google Maps.

April Hamm knows Google Maps is more than just a tool to navigate from point A to B. She's harnessed the power of the app to teach people about Black history in her current city of New Orleans.

Though she grew up in a small town in Georgia, Hamm spent a lot of time visiting New Orleans as a kid. Since 2017, Hamm's been a...