When the big night arrived, Jack made his way on stage in front of the studio and TV audience. He was the best guest the show had ever seen and had become the talk of the town. The host stepped up to the mic.

"Jack, for your final question you have chosen American History. If you answer this question correctly, you will walk away $5,000,000 richer. Are you ready?"

Jack nodded with a cocky confidence and the crowd went wild. He hadn't missed a question all week.

"Jack, your American History question is a two-part question. As you are already aware, you may answer either part first. As a rule, the second half of the question is always easier. Which part would you prefer to take a stab at first?" said the host.

Jack was now becoming more noticeably nervous. He couldn't believe it, but he seemed to be drawing a blank. American History was his easiest subject, but he thought he'd better play it safe. "I'll try the easiest part first," he said.

The host nodded approvingly. "OK, Jack, here we go. I'll ask you the second half first, then the first half."

The audience held their breath with gross anticipation.

"Jack, here is your question: And in what year did it happen?"