Black resistance against slavery. Between 9 and 11 million enslaved Africans were bought by European traders from Africa between 1450 and 1870. They were taken across the Atlantic Ocean to work on the European-owned plantations and mines of the Americas. Hence the name the transatlantic slave trade.
How many earthquakes does Alaska have each year? Alaska has 11% of the world's earthquakes, and 3 of the 6 largest in recorded history were located there. Since 1900, Alaska has had 1 magnitude 7 or 8 earthquakes per year, 45 earthquakes of magnitude 6 or 7, and 10,000 quakes overall annually. The most famous earthquake, of course, was the 1964 Great Alaska Earthquake centered near Prince William Sound. With a magnitude 9.2 over 4.5 minutes, this devastating temblor and resulting tsunami took the lives of 100 people and turned the city of Anchorage into a disaster area.
Across south-central Alaska, ground fissures, collapsing structures, and tsunamis resulting from the earthquake caused about 143 deaths. It was the most powerful recorded earthquake in U.S. and North American history, and the second most powerful ever measured by seismograph. It had a magnitude of 9.2, at the time making it the second largest earthquake in recorded history.