Pinpointing the "first" programming language is hard as a consequence of different definitions. Ada Lovelace's 1843 algorithm for Charles Babbage's Analytical Engine is usually credited, even though it was not executed on a real device. The initial device-executed languages emerged in the 1940s, with Shorter Code (1949) and Plankalkül (1943-1945) https://blog.hellomybd.com/the-first-programming-language/