07/07/2026
QR Codes: The Tiny Squares That Changed the World
How many QR Codes have you scanned this week?
To pay for lunch?
Read a restaurant menu?
Board a flight?
Connect to Wi-Fi?
Most of us use QR Codes almost every day without thinking about where they came from.
But here's the surprising part...
QR Codes weren't invented for smartphones.
They were created in 1994 by engineers at Denso Wave, a supplier to Toyota, to solve a manufacturing problem. Traditional barcodes couldn't store enough information and were too slow to scan on busy assembly lines.
The solution was the Quick Response (QR) Code—a tiny square capable of storing much more data and being scanned from almost any angle.
What started as a factory tool eventually became one of the most useful technologies in modern life, powering payments, tickets, product information, and countless digital services.
It's another perfect story in our "Necessity" series.
A problem in one industry created a solution that now helps billions of people around the world.
🎥 Full story coming soon. https://www.youtube.com/?sub_confirmation=1
What's the most surprising use of a QR Code you've ever seen?