Simplify the following text for a Grade 5 native English-speaking person.
Original: With the end of the war in sight , on November 29 , 1944 , three-time 500 winner Wilbur Shaw came back to do a 500 m tire test approved by the government for Firestone .
Simplified: On November 29 , 1944 , three-time 500 winner Wilbur Shaw came back to do a 500 m tire test for Firestone . The test was approved by the government .