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From Turing Test to ChatGPT: A Condensed 80-Year Timeline of AI Progress

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Artificial intelligence has evolved over eight decades, beginning with theoretical concepts like artificial neurons and the Turing Test in the 1940s and 1950s. Key milestones include early conversational systems in the 1960s–70s, the backpropagation breakthrough of the 1980s, and the rise of data-driven machine learning through the 1990s and 2000s. The 2010s saw accelerated progress with tools like ImageNet and the founding of OpenAI, enabling AI to surpass human performance in specific tasks. The 2020s marked a turning point with foundation models, as products like GitHub Copilot in 2021 and ChatGPT in 2022 brought AI capabilities to mainstream users. Enterprise adoption has surged since 2023, with major organizations reporting significant time savings and return on investment, while nations such as the United States treat AI infrastructure as a matter of national security.

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