The four-color theorem — any map needs only 4 colors — was proved with computer assistance in 1976.
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The last guillotine execution happened in 1977.
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The first computer virus, Creeper, spread across ARPANET in 1971 and displayed the message 'I'm the creeper — catch me if you can!'
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The first iPhone had no copy and paste functionality — it wasn't added until the 3.0 software update in 2009.
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The development of MRI technology improved internal imaging.
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The modern emoji originated in Japan in 1999, designed by Shigetaka Kurita for a mobile internet platform.
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Blockchain technology underlies cryptocurrencies but is also used for supply chain tracking and secure voting systems.
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The term 'bug' in software was popularized by Grace Hopper, a pioneering computer scientist.
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The last guillotine execution happened in 1977.
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