Each one is a timeline that plays out on the globe: armies advance, borders shift, routes draw themselves across oceans. Every event is dated, sourced and linked to the article behind it.
From the Onon to the Caspian, 1206–1227
One country, torn in two and taken back battle by battle, 1860–1865
Caesar's conquest of Gaul, 58–50 BC
Venice to Xanadu and back, 1271–1295
Every recorded nuclear test, 1945–1998
How one species took the whole planet, 300,000 BC – AD 1300
Every significant eruption on record since 1500