It was pretty extensive - we worked out 8 hours a day, 5 days a week, for 3 months, which I think is more than anybody in the Olympics. I thought well I don't need this, the girls need it, but it was a gift.
“As a historian, I love every little detail, but whole long passages about wood paneling and journeys on horseback and every stop at every inn had to go out the window. I decided the history in the books should be like spice in a soup - a little went a long way. Like cilantro.”