 
 <translate> I got a question for you: In the 1979 -- 80 season, after having tested it in the previous pre-season, the NBA adopted the three-point line despite the view of many that it was a gimmick. Chris Ford of the Boston Celtics is widely credited with making the first three-point shot in NBA history on October 12, 1979. Kevin Grevey of the Washington Bullets also made one on the same day.

Based on this passage, when did the nba institute the 3 point shot?
Let's think first: <ibo> Enwere m ajụjụ m ga-ajụ gị: N'afọ 1979 - 1980, mgbe ha nyochachara ya n'afọ ndị gara aga, ndị NBA ji akara ntụpọ atọ mee ihe n'agbanyeghị na ọtụtụ ndị chere na ọ bụ aghụghọ. Chris Ford nke Boston Celtics ka a na-ekwu na ọ bụ ya bụ onye mbụ gbara ọkpụ atọ n'akụkọ NBA n'abalị iri na abụọ nke ọnwa Ọktoba n'afọ 1979. Kevin Grevey nke Washington Bullets mekwara otu ụbọchị ahụ.  Dabere na nke a, olee mgbe ndị nba bidoro ịgba bọọlụ atọ? Ka anyị buru ụzọ chee echiche: 