I think the answer is <span>The land acquired in the Mexican cession should be established as free states. </span>
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.
Answer:
On May 29, 1453, after an Ottoman army stormed Constantinople, Mehmed triumphantly entered the Hagia Sophia, which would soon be converted to the city's leading mosque. ... Emperor Constantine XI died in battle that day, and the Byzantine Empire collapsed, ushering in the long reign of the Ottoman Empire.
Explanation: