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.
According to Graham Allison book, Nuclear Terrorism, only 5 percent of daily cargos into the U.S are screened where every day 30,000 trucks, 6500 rail cars and 140 ships deliver over 50,000 cargo containers into the United States. This rarely involves physical inspection which may not detect nuclear weapons and fissile materials.
<span><span>1. </span><span>Nullification doctrine is said that the
states residing within the Union is undocumented. Supposed Aliens and sedition
acts was passed to punish those who opposed the federal laws and regulations. However,
it was Thomas Jefferson who thought that this act may affect the Bill of Human
rights, so he decided to make an equally unconstitutional doctrine that states
if a government would implement a law, a state could refuse to follow it. John Calhoun, soon adapted the Nullification
doctrine</span></span>
Answer:
Leif Eriksson
Explanation: Half a millennium before Columbus “discovered” America.