Pinpointing the "1st" programming language is tricky because of varying definitions. Ada Lovelace's 1843 algorithm for Charles Babbage's Analytical Motor is usually credited, though it wasn't executed on an actual device. The primary device-executed languages emerged in the 1940s, with Quick Code (1949) and Plankalkül (1943-1945) staying notable early illustrations. https://blog.hellomybd.com/the-first-programming-language/