The Berlin Conference divided much of Africa among European powers.

The Pentagon Papers revealed previously undisclosed details about U.S. involvement in Vietnam.

Fact #1043 · Geography

Countries with extremely high tax rates sometimes collect less revenue than countries with moderate tax rates.

Fact #2603 · Geography

The Sahara Desert was once home to large lakes and grasslands.

Fact #232 · Geography

There are deep ocean trenches deeper than Mount Everest is tall.

Fact #2273 · Geography

The bubonic plague killed about one-third of Europe's population in the 14th century.

Fact #3693 · Geography

The Earth's crust varies in thickness beneath continents and oceans.

Fact #240 · Geography

The ocean contains structures larger than mountain ranges.

Fact #1784 · Geography

Canada has more lakes than every other country combined.

Fact #3390 · Geography