The first scholarly attempts to explain the puzzle-piece configuration of the continents invoked the hand of God. Even respected scientists like Charles Darwin and Nikola Tesla flirted with the idea. But up until the point plate tectonics became widely accepted, the Expanding Earth theory was a popular explanation for the processes that shaped the Earth. Today, following a 20th century golden age of marine science, scientists understand how shifting plates have shifted the continents over the course of Earth’s history. The seas formed in the gaps between the continents. Then, as the dwarf Earth expanded, the continental shell broke apart. The theory claimed that millions of years ago, our planet was only about 60 percent of its current size and that the entire surface of this pint-sized globe was blanketed by land.
The matching coasts were “more than a curiosity"
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