What Happened on April 19th

 
First FORTRAN Program Runs
Researchers run the first FORTRAN program. Short for "FORmula TRANslator," FORTRAN enabled computer programmers ("coders," at the time) to work in a "high-level" language, greatly simplifying program writing. The first FORTRAN program (other than internal IBM testing) runs at Westinghouse, producing a missing comma diagnostic. A successful attempt followed.