Complex sentence: This was one of the highest scoring periods in NHL history, led in the 1980s by the Edmonton Oilers and Wayne Gretzky, who scored 200-points or more four times, including a league record 215 in in 1985--86.
Split into simpler sentences: This was one of the highest scoring periods in NHL history. It was led in the 1980s by the Edmonton Oilers and Wayne Gretzky, who scored 200-points or more four times, including a league record 215 in in 1985--86.