I want to know the answer to the following question:
What date did Thomas Watson, Jr. send out a letter about IBM hiring the best people regardless of race, gender, or origin?
All the background I'm provided with is that "On September 21, 1953, Thomas Watson, Jr., the company's president at the time, sent out a controversial letter to all IBM employees stating that IBM needed to hire the best people, regardless of their race, ethnic origin, or gender.". Is that enough to answer the question?