AI History

  • Artificial Neuron from McCulloch–Pitts

    Logical model of a binary “neuron” that inaugurated the connectionist approach to AI.
  • Turing’s “Imitation Game”

    Proposes an operational test for machine intelligence and raises foundational questions.
  • Logic Theorist

    Newell and Simon present one of the first AI programs, capable of proving logic theorems.
  • Dartmouth Conference (the term “AI” is born)

    Workshop that defined the initial research agenda and coined “Artificial Intelligence.”
  • Rosenblatt’s Perceptron

    First supervised learning neural classifier; inspired decades of work on neural networks.
  • LISP

    McCarthy creates LISP, a programming language central to AI research for decades.
  • ELIZA

    Description: Weizenbaum demonstrates a dialogue system mimicking a therapist; showcased both potential and limits of early NLP.
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    Shakey, the first “thinking” mobile robot

    Developed at SRI, it integrated perception, planning, and action in an autonomous robot.
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    SHRDLU (Blocks World)

    Natural language system that “understood” and acted within a microworld; far ahead of its time.
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    MYCIN (Expert Systems)

    Diagnostic system for infections; popularized rule-based “if–then” logic and fueled the expert system boom.
  • XCON/R1 at DEC

    Large-scale industrial expert system for computer configuration; proved commercial value of symbolic AI.
  • Backpropagation Rediscovered

    Rumelhart, Hinton, and Williams systematized training multilayer networks via backpropagation, reviving neural networks.
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    AI Winter

    Unmet expectations and funding cuts slowed progress; later revived by statistical and machine learning approaches.
  • Deep Blue Defeats Kasparov

    Milestone in search-based AI; first victory against the reigning world chess champion.
  • Deep Belief Networks (Deep Learning revival)

    Hinton and colleagues showed effective layer-wise training, relaunching deep learning.
  • ImageNet (Large-scale data)

    Massive labeled image dataset that catalyzed benchmark-driven progress in vision.
  • IBM Watson Wins Jeopardy!

    howcased open-domain question answering through integrated IR and statistical methods.
  • AlexNet Dominates ImageNet

    Deep CNN drastically reduced error rates, sparking the modern deep learning wave in vision.
  • GANs (Generative Adversarial Networks)

    Goodfellow introduced adversarial training, foundational to modern generative AI.
  • AlphaGo Defeats Lee Sedol

    Combined deep learning and Monte Carlo tree search; landmark in reinforcement learning.
  • Transformers (“Attention Is All You Need”)

    New architecture based solely on attention; ushered in the era of foundation models.
  • BERT

    Bidirectional pretraining revolutionized NLP by enabling fine-tuning across tasks.
  • GPT-2

    Generative language model popularized zero/one/few-shot learning across diverse tasks.
  • GPT-3

    Massive scaling (175B parameters) showcased strong in-context learning without fine-tuning.
  • MuZero

    Learned to plan without knowing environment rules; advanced reinforcement learning.
  • AlphaFold2 (and AlphaFold DB)

    Predicted protein structures with near-atomic accuracy and released millions publicly.
  • Stable Diffusion (Open Weights)

    Open-source latent diffusion model accelerated creativity and derivative ecosystems.
  • ChatGPT

    Conversational interface that democratized access to LLMs and triggered global adoption.
  • DALL·E 2

    Text-to-image generation with unprecedented realism and compositionality.
  • GPT-4

    Multimodal model with near-human performance across exams and reasoning tasks.
  • Llama 3 (High-quality open weights)

    Meta released Llama 3, consolidating the wave of powerful open-source LLMs.
  • GPT-4o (Omni)

    Unified model for text, vision, and audio in real time; reduced costs and latency.
  • Sora (Text-to-Video)

    OpenAI showcased high-fidelity video generation of up to ~1 minute, pushing multimodality forward.
  • GPT-5 (Public Announcement)

    OpenAI announced GPT-5, marking the next leap in capability and safety.