See all...
- People
- from Luis Alvarez to the Wright brothers, the men and women
responsible for the 20th century's greatest science achievements
- Discoveries
- significant stories from a remarkable century of discovery
...or view entries by topic...
- Medicine and Health
- on the forefront of 20th-century medicine
- Physics and Astronomy
- relating to the atom, the astronomical, and the abstract
- Human Behavior
- what we've learned about the mind over the past 100 years
- Technology
- inventions and inventors from the wireless to the World Wide Web
- Earth and Life Sciences
- with a focus on DNA, plate tectonics, and human origins
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