The Exact Year DNA Testing Was Invented—and How It Changed Everything
The first time humans glimpsed the double helix wasn’t in a lab coat or microscope—it was in a photograph. On April 25, 1953, *Nature* published James Watson and Francis Crick’s one-page letter declaring they’d deduced DNA’s structure. But the question of when was DNA testing invented isn’t about the discovery of DNA itself—it’s about the … Read more
