When Augusta became a Golf town.
Every town is known for something. Chicago, Illinois has great hot dogs, New York, New York is the city that never sleeps, and Augusta, Georgia is home to The Masters.
As Wikipedia reports, the idea for the course originated with Bobby Jones, who wanted to build a golf course after his retirement from the game. Curt Sampson wrote a book in 1999 entitled The Masters: Golf, Money, and Power in Augusta, Georgia in which he quotes Jones as saying the piece of land he found in Augusta, Georgia was "Perfect! And to think this ground has been lying here all these years waiting for someone to come along and lay a golf course upon it." Jones hired Alister MacKenzie to design the course, and work began in 1931. The course formally opened in 1933, and the first actual tournament was played in 1934.