Another example is the Concert of Europe, introduced in 1815 to balance power in an attempt to prevent war. These systems become familiar, the road map navigable ... It entered the First World War not ...

Which material was popularized in ancient Egypt (and later used by Greece and the Roman Empire) for writing books and other ...

which is then plotted onto a map of the physical world. 3D represents the next generation of geospatial data, providing a richer, more accurate representation of the real world. Geospatial 3D data ...

Can you sort 8 historical events?

In 1809, Jean François Tourcaty did something both strange and remarkable: he mapped a country through its food. Not its ...

But how much attention did you pay to what else has been going on in the world over the past seven days? Quiz compiled by George Sandeman and Grace Dean. Fancy some more? Try last week's quiz or ...

See if your Viking Age trivia knowledge is in ship-shape condition with our quiz.

State of the World was previously State of Ukraine. You'll continue to hear Ukraine coverage here, along with other international stories. Support NPR's reporting by subscribing to State of the ...

But how much attention did you pay to what else has been going on in the world over the past seven days? Quiz compiled by George Sandeman and Grace Dean. Fancy some more? Try last week's quiz or ...

What discoveries led to the use of nuclear power? When did the first plant come online? Test your knowledge with this WSJ ...

The world’s top ten richest got a collective $157 billion poorer during the month of March, their fortunes dragged down by tumbling U.S. stocks amid uncertainty about the impact of the Trump ...