The 1848 Treaty of Guadalupe Hidalgo, forced onto the remnant Mexican government, ended the war and specified its major consequence, the Mexican Cession of the northern territories of Alta California and Santa Fe de Nuevo México to the United States
15th century
The transatlantic slave trade began during the 15th century when Portugal, and subsequently other European kingdoms, were finally able to expand overseas and reach Africa. The Portuguese first began to kidnap people from the west coast of Africa and to take those they enslaved back to Europe.
I'm torn between a and b, because they both happened in that time period.
establishing your eligibility to filing, fingerprinting, attending an interview, passing tests of your knowledge of English and of U.S. civics, and attending an oath ceremony.