Finland, between the Gulf of Bothnia and the Russian forests, was settled by hunters as soon as the ice retreated; the oldest known site, at Ristola in Lahti, dates from about 8900 BCE. Its Finnic-speaking peoples, the Finns proper, the Tavastians and the Karelians, and the Sámi of the north lived by hunting, fishing, farming and the fur trade between Scandinavia and Russia.

From the twelfth century Catholic Sweden and Orthodox Novgorod competed for the land. For six centuries Finland was part of the Swedish realm, sharing its law, its Lutheran church and its wars with Russia, which twice occupied the country and in 1809 conquered it.

As an autonomous Grand Duchy under the Russian emperors Finland built its own state, its national culture around the Kalevala and the Finnish language, and in 1906 the first parliament in Europe elected by women and men alike. Independence came in December 1917, followed by a bitter civil war, and in 1939–1944 Finland fought the Soviet Union twice and kept its freedom at the cost of Karelia.

The Cold War republic of Paasikivi and Kekkonen became a Nordic welfare state, joined the European Union in 1995 and, after Russia's invasion of Ukraine, NATO in 2023. Explore the ten ages below through selected events from the timeline.