The quote on the golden spike at Promontory Point — I don’t know if I would read too much into that, because it took place in 1869, just 4 years after the end of the War Between the States. I think they were referring to the “reunification” of the country after the end of the War.
No, nothing wrong with the quote on the Golden Spike. It made a lot of sense at the time. But why was it chosen among the very few quotes for our Passport?