I would have to go with Completion of the transcontinental railroad in 1869
Answer:
By 300 BC, it became one of the largest and richest cities in antiquity, with its colonies, vassals, and satellite states constituting more territory than any other polity in the region. Carthage's wealth and power rested primarily on its strategic location, which provided access to abundant fertile land and major trade routes.
Explanation
There was also A very succsesful period of trades.
Hope this helps, good luck!
Machine Guns, Artillery Fire, and Mines
Answer:
Immigrants were largely preyed upon by political machines expecially Italian immigrants.
