Question: When was the last time notre dame won a national championship in football?
Disambiguated questions and answers: question: When was the 11th time notre dame claimed a national championship in football?
When was the 10th time notre dame claimed a national championship in football?
When was the 9th time notre dame claimed a national championship in football?
answer: 1988
1988 NCAA Division I-A football season
1977
1977 NCAA Division I football season
1973
1973 NCAA Division I-A football season
Natural Questions answer: 1988 (from the Wikipedia article "Notre Dame Fighting Irish football")