The World's First 'Test-Tube Baby' Is 40 Today. Here's What She Thinks About Making History

Louise Brown doesn't mind if you call her a test-tube baby, "but I prefer IVF – since there weren't any test tubes involved," she says with a laugh, gesturing to the large glass jar in which she started her life.

That jar is now displayed at the Science Museum in London, because — exactly forty years ago Wednesday — Louise Brown became the first person to be born after being conceived outside of the human body, through in vitro fertilization (IVF).