Starting in the 19th century, advertisers profited off of the public’s fear of germs. They sold products that made homes cleaner and improved personal hygiene, and unintentionally made the public healthier.

Read This Next

Haitians reflect on the past while confronting the future

Chunk of an ancient supercontinent discovered under New Zealand

These mystery stories solve crimes and spark travel

Go Further

Subscriber Exclusive Content

Why are people so dang obsessed with Mars?

How viruses shape our world

The era of greyhound racing in the U.S. is coming to an end

See how people have imagined life on Mars through history

See how NASA’s new Mars rover will explore the red planet

Why are people so dang obsessed with Mars?

How viruses shape our world

The era of greyhound racing in the U.S. is coming to an end

See how people have imagined life on Mars through history

See how NASA’s new Mars rover will explore the red planet

Why are people so dang obsessed with Mars?

How viruses shape our world

The era of greyhound racing in the U.S. is coming to an end

See how people have imagined life on Mars through history

See how NASA’s new Mars rover will explore the red planet