1836
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communication was slow bask then and Samuel Finley Breese Morse (inventer of the Morris Code)also did it on some personal levels as well.
The Morse Code was invented because we can send messages to each other like s.o.s
A student Bernie overheard a conversation and told his teacher Woodland about it and he experimented and he invented the bar code using morse code.
In 1679
The Quick Response (or QR) Code was invented by the Denso Wave company to track the vehicle manufacturing process.