WeekInTime Issue 64: The Tortoise and the Hare

Charles Darwin learns that another scientist has independently discovered the theory of natural selection

Imagine you’ve been working on a single idea for 20 years. This is your magnum opus, and the results will change the way we understand mankind. You collect samples, pore over data, and correspond with friends and colleagues — all to ensure that the evidence for your theory is air-tight. Then one day, you find out someone else has beaten you to the punch…