Today in Cowboys History. 47 years ago today, before he even had a confirmed franchise, Clint Murchison hired Tom Landry to be his Head Coach. Thank you Coach. Also on this date, (we have never lost on this historic date) we completed the only sweep of the 5 team NFC East ever. Any team who accomplishes it now will never be able to say they swept all 8 games in a 5 team division.