Pinpointing the "to start with" programming language is hard resulting from different definitions. Ada Lovelace's 1843 algorithm for Charles Babbage's Analytical Motor is usually credited, while it was not executed on a real machine. The very first machine-executed languages emerged in the 1940s, with Limited Code (1949) and Plankalkül (1943-1945) https://blog.hellomybd.com/the-first-programming-language/