What were some of the first applications for machine learning?

According to McCulloch and Pitts, the McCulloch-Pitt (MCP) Cell was the first to define how a mammalian brain cell functions. The principles that control nerve activity are investigated. Volume 5, Number 4, April 1943, Pages 115–133, Bulletin of Mathematical Biophysics.

According to the Journal of the Anthropological Institute of Great Britain and Ireland (pp. 246–263, 1886), F. Galton invented linear regression. Statistical approaches have grown in a different way than machine learning. Machine learning and statistical analysis, on the other hand, are inextricably linked.