WAR

The First World War was an unprecedented catastrophe that shaped our modern world. Erik Sass is covering the events of the war exactly 100 years after they happened. This is the 188th installment in the series.

We're covering the events of World War I exactly 100 years later.

Hungarian brothers László and György Bíró are credited with inventing the pen we still use today.

In his engrossing new book, The Billion Dollar Spy, David E. Hoffman takes readers into the CIA’s Moscow station during the Cold War, telling the astonishing story of how spies recruited agents, and what happened when things went wrong.

Erik Sass is covering the events of World War I exactly 100 years later.

We're covering the events of World War I exactly 100 years later.

We're covering the final days of the Civil War exactly 150 years later.