Today's history lesson was about the beginning of the Industrial Revolution. I got a kick out of the section that talked about the rise of the iron industry - and showed a picture of Ironbridge. 4 years ago Steve and I walked across that bridge. It seemed to still be quite sturdy - although it is only a pedestrian bridge now. I'm not sure if it owes its sturdiness to the iron it was made from or the hundreds of coats of paint.