A permanent wave in ladies' hair is aided by curlers, and this leads us to explore borax, taking us to Switzerland, Johann Sutter's scam, and Sutter's Mill, and that means the discovery of gold leading to the 1848 California gold rush. Americans then cut into the English tea market with the aide of the Yankee Clipper, which played a big role in the gold rush. A fungus from America created the Irish potato famine, resulting in the importing of corn, but laws prevented the Yankee clippers from being used until it was too late to save Ireland. Finally, the laws were changed, leading to franking fraud, which was overcome by special printing of postage stamps, which gave us wallpaper, and a thickening agent, leading us to the Canal du Midi, the American war for independence, resettlement in Scotland, highlanders in Nova Scotia and—finally—the RMS Queen Elizabeth II.