Toward the end of the 19th century, something invisible began to transform the world. Electricity—a force that science had only just begun to understand—moved from laboratories into everyday human life. Electricity was not “suddenly discovered,” but gradually understood and harnessed over centuries by many scientists.
The earliest recorded observations came from the ancient Greeks, particularly Thales of Miletus, who noticed that rubbing amber (elektron) attracted small objects. This was a form of static electricity. Around 1600, William Gilbert became the first to systematically study electricity and magnetism. He introduced the term “electricus,” derived from the Greek word for amber.
In the 18th century, Benjamin Franklin demonstrated that lightning is a form of electricity, famously showing that electrical phenomena exist in nature and the atmosphere through his kite experiment. In 1800, Alessandro Volta built the first electric battery, making it possible to produce a continuous flow of electric current.
In 1831, Michael Faraday discovered electromagnetic induction, laying the foundation for electric generators and enabling large-scale electricity production. Around 1880, Thomas Edison developed the practical incandescent light bulb, and together with Joseph Swan helped bring electric lighting into homes and cities. At the same time, Nikola Tesla developed alternating current (AC) and polyphase power distribution systems, which made long-distance transmission of electricity efficient and practical.
By the late 19th century, electric lights began illuminating streets and public buildings, and the nights of cities changed forever. Where there had once been darkness and silence, there was now light, movement, and activity. At first, electric lighting was a luxury, but it gradually spread. By the early 20th century, more and more homes were connected to electrical grids. The light bulb replaced the candle, and humans gained control over the night.
This new force was not limited to lighting. Motors, machines, and factories began operating with electricity, greatly increasing production and accelerating industrial growth. Life became faster, more organized, but also increasingly dependent on energy.
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