50 years ago, continental drift began to gain acceptance
Excerpt from the April 29, 1967, issue of Science News
![map of Earth](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2017/04/032417_TI_platetectonics_main_free.jpg?fit=860%2C460&ssl=1)
FULL OF PLATES Earth’s outer crust is composed of more than a dozen large pieces, known as tectonic plates, which bump or slide against each other.
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