Question: Who has the most wins in a major league baseball season?
Disambiguated questions and answers: question: Which National League team has the most wins in a single MLB season?|Who has the highest win percentage in a Major League Baseball season?
Who has the highest number of wins in a Major League Baseball season?
Which American League team has the most wins in a single MLB season?
answer: Chicago Cubs
Chicago
Cubs
Cubs and Mariners
Chicago Cubs and Seattle Mariners
Chicago and Seattle
Seattle Mariners
Natural Questions answer: Chicago Cubs (from the Wikipedia article "List of best Major League Baseball season win-loss records")