Stephen Curry's success has popularized the three-point shot in a revolutionary way. The Warriors star has made so many three-pointers the past two seasons that Dallas Mavericks owner Mark Cuban says the NBA should consider moving the line back further. The NBA three-point line is 22 feet in the corners and then fans out to 23 feet, 9 inches above the key. It once experimented with a line of 22 feet everywhere for a few seasons in the mid-90s before realizing it was a mistake.
To get a better understanding on the origins of the three-point shot, how it has developed and Curry's role in this, here's an efficient explanation from Jacques Slade
