user
写一篇介绍人工智能发展历程的英文文章。
assistant
Certainly. The development of artificial intelligence can be traced back to the ancient Greeks, who created devices that utilized mathematical reasoning. However, it wasn't until the 1950s that actual computer programs began to be developed. These programs eventually led to the creation of expert systems, which helped solve problems in specific fields like medicine and engineering. Starting in the 1980s, more advanced techniques like neural networks and machine learning were developed, leading to the AI technology we have today. 
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user
提取出这篇文章的主要意思。
assistant
The article describes the history of artificial intelligence, including its origins in ancient Greece and its development into the advanced technology we know today. Specific developments that are mentioned include the creation of early computer programs, the invention of expert systems, and more advanced techniques like neural networks and machine learning.