This poster from the 1850s appeared in response to the:

What was happening in 1850?

POP Culture: 1850

The September 18, 1850, Fugitive Slave Act provides for the return of slaves brought to free states. Millard Fillmore is sworn into office as the 13th President of the United States, following Zachary Taylor's death on July 9, 1850. "America" wins the first America's Cup yacht race on August 22, 1851.

Hoped that helped:)

the answer wold be b) travel among nations should be regulated by an international organization

a drastic rise in oil prices ended decades of postwar.