Simplify the following text for a Grade 8 native English-speaking person.
Original: In November 1917 , the owners of the NHA , apparently unwilling to continue the league with Toronto NHA owner Eddie Livingstone , decided to suspend the NHA and form a new league , the NHL , without Livingstone .
Simplified: The November 10 , 1917 annual meeting of the NHA was presided over by Frank Calder , who was the NHA secretary . The NHA voted to stop operating .