This has only happened 7 times in Olympic history. What is it?

QI Rewind 8-12-24

Catch up on what you missed with the Question Impossible featured weekday mornings at 7:10 on the Mo…

This was first introduced in 1863. What is it?

The last time this happened was in 2006. What is it?

1/3 of Americans have THIS in common. What is THIS?