While not a lesser know language, the evolution of await/async from Haskell to C# to Dart by Meijer is a good example that comes to mind. I'm a working programm

While not a lesser know language, the evolution of await/async from Haskell to C# to Dart by Meijer is a good example that comes to mind. I'm a working programmer without a college degree, so I can't vouch that I have the correct interpretation of the computer science. See "Confessions of a Used Programming Language Salesman - Getting the Masses Hooked on Haskell' by Erik Meijer http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.72.868&rep=rep1&type=pdf http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.72....