What event, occurring on September 1, 1939, is generally considered the start of World War II in Europe?
What famous barrier divided East and West Berlin from 1961 until its fall in 1989?
While many dynasties contributed, which ancient Chinese dynasty is most famously associated with initiating the construction of the Great Wall of China?
What was the capital city of the Inca Empire, located high in the Andes Mountains of Peru?
Which self-governing nation was the first in the world to grant all women the right to vote in national elections?
What ancient city in present-day Mali became a legendary center of trade, scholarship, and Islamic learning in West Africa?
Who was the first human to journey into outer space?
What ancient writing system, developed by the Sumerians in Mesopotamia, is considered one of the earliest forms of written language?
Which Norse explorer is generally credited with being the first European to set foot on North American soil, centuries before Columbus?
Who famously initiated the Protestant Reformation by posting his Ninety-five Theses in Wittenberg?