Typically I could help but I'm very confused
One example of mail-order catalog that emerged during the American Industrial Revolution was: <span>Spiegel
Spiegel was founded by a german-born journalist in 1904.
This company's primary focus was to sell various choice of furniture through mail order and managed to sold around $20 million per year worth of products. (if we account the inflation, it worth around $150 million per year today)</span>
The Underground Railroad wasn't a real railroad, but a network of courageous people who helped slaves secretly travel from the South to the North. In 1850, President Fillmore signed the Fugitive Slave Act, which made it illegal to help a slave run away and required officials to return escaped slaves to their owners.
Nationalism can unify a country by having a sense of superiority over other countries.
