It happened on… September 15

Russian boxer Gennady Golovkin (38-1-1, 34 KOs) suffered his first professional loss during his 20th world title defense against Mexican Canelo Álvarez (50-1-2, 34 KOs) in Las Vegas

NHL Commissioner Gary Bettman announces that the league is locking out its players ahead of the upcoming season.

The 27th Olympic Games begin in Sydney, Australia.

The domain name Google.com is registered.

"L.A. Law" premieres on NBC, starring Corbin Bersen, Jill Eikenberry, and Harry Hamlin, among others.

"Columbo," starring Peter Falk, premieres on NBC.

Montreal Canadiens forward Maurice Richard announces his retirement from the NHL. At the time, he held the record for 544 regular-season goals.

The second Quebec Conference between Franklin D. Roosevelt and Winston Churchill is held at the Citadel of Quebec to coordinate their postwar plans.

The Nuremberg Laws are enacted by the German Nazis. These laws strip German Jews of their civil rights.

Biologist Alexander Fleming discovers the antibiotic penicillin.

Tanks are used for the first time on a battlefield at Flers-Courcelette during the Battle of the Somme.