Complex sentence: The first goal in NHL history, however, was scored by Dave Ritchie of the Montreal Wanderers one minute into a 10--9 win over Toronto, which was the only victory the Wanderers recorded in the NHL.
Split into simpler sentences: The first goal in NHL history, however, was scored by Dave Ritchie of the Montreal Wanderers one minute into a 10--9 win over Toronto. It would be the only victory the Wanderers recorded in the NHL.