Original sentence: It was one of the most important and tragic seasons in Formula One's history.The 1958 Formula One season included the 9th FIA Formula One World Championship season, which commenced on January 19, 1958, and ended on October 19 after eleven races
Edited sentence: It also included the 1958 International Cup for F1 Manufacturers,  which was contested concurrently with the World Championship of Drivers, and a number of non-championship races for Formula One cars.It featured the 1958 World Championship of Drivers which commenced on January 19, 1958, and ended on October 19 after eleven races.The 1958 Formula One season was the ninth season of FIA Formula One motor racing.The season was one of the most important and tragic seasons in Formula One's history