You will be given a definition of a task first, then some input of the task.
In this task, we ask you to elaborate the sentence without changing its general meaning. You can do so by explaining further the input sentence, using more precise wording, adding qualifiers and auxiliary information etc.

On April 15 , 1997 , Robinson 's jersey number , 42 , was retired by Major League Baseball .
Output:
On April 15 , 1997 , Robinson 's jersey number , 42 , was retired throughout Major League Baseball , the first time any jersey number had been retired throughout one of the four major American sports leagues .