The Las Vegas Golden Knights have reached the Stanley Cup finals in the 2017 - 2018 season after beating Winnipeg Jets in the western conference finals. This has been a big surprise as the Knights joined the NHL on the same season and most expansion teams don't even qualify for playoffs on their first year. But the Knights have a chance to be the first NHL team to win the Stanley Cup in their first year.
Has there been any other North American major league teams that made it all the way to the cup finals on their first year? If so list the team, league, year, and the outcome of the finals.