During the Industrial Age, early age paper printers(news papers) were popular for the use of spreading word, informing the public of recent news or events, and business advertisements, Printer companies made a profit whenever another business wanting to advertise in their paper.
Because they were thinly setteled and the Mexican government had long neglected them. List 3 details of the Treaty of Guadalupe Hidalgo.
The answer is first opium war
