Harry Hess: One of the Discoverers of Seafloor Spreading | AMNH https://www.amnh.org/learn-teach/curriculum-collections/earth-inside-and-out/harry-hess-one-of-the-discoverers-of-seafloor-spreading
The idea that continents drift over time dates back to the 1500s, but it wasn’t until the 1900s that scientists figured out plate tectonics.
Pinkham PROFILE: Jane Goodall PROFILE: Abebe