1873Jeans were patented in 1873.

Wacky WorldInventions

Levi Strauss and tailor Jacob Davis patented copper-riveted work trousers.

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<span class="aj-year">1896</span>The first escalator was a fairground ride.<span class="aj-year">1994</span>The QR code was invented to track car parts.<span class="aj-year">1899</span>Aspirin comes from willow bark.