Pinpointing the "1st" programming language is difficult on account of various definitions. Ada Lovelace's 1843 algorithm for Charles Babbage's Analytical Engine is often credited, even though it was not executed on a true machine. The very first device-executed languages emerged during the 1940s, with Quick Code (1949) and Plankalkül (1943-1945) https://blog.hellomybd.com/the-first-programming-language/