The Prague Spring of 1968 explained

For a few months in 1968, a communist country tried to loosen its own grip. It ran from January to August and left a memory so strong that "Prague Spring" is now a phrase for any short-lived thaw.

Why reform

By the mid-1960s Czechoslovakia's economy was stagnating, and critics inside and outside the party wanted change. Writers pushed against censorship, economists argued for reform and Slovak leaders wanted more say. In January 1968 the party replaced its leader Antonín Novotný with Alexander Dubček, a Slovak communist with a reformist reputation.

What changed

Dubček's team published an Action Programme in April 1968. It promised an end to censorship, the rehabilitation of victims of earlier political trials, more rights and economic reform, under the slogan "socialism with a human face". Newspapers began to print criticism and public debate flourished. The party had no plan to abandon communism; it wanted to make it more open. But the speed of change alarmed hardliners at home and across the Soviet bloc.

In June 1968 the writer Ludvík Vaculík published a manifesto, "Two Thousand Words", calling on citizens to support reform. Moscow and other Warsaw Pact leaders read it as a threat.

The invasion

On the night of 20 to 21 August 1968, troops from the Soviet Union and four other Warsaw Pact states crossed the border with tanks. In Prague, crowds came into the streets, argued with soldiers and defaced street signs to confuse them. Czechoslovak leaders were detained and taken to Moscow. The Czechoslovak army did not fight. Civilians were killed in the first days.

The Czech Radio building on Vinohradská was the scene of fighting, and broadcasters kept reporting as long as they could. The National Museum on Wenceslas Square was also caught in the gunfire, and the pockmarks in its stone remain. Our National Museum guide tells you where to look.

The aftermath

The Moscow Protocol forced Dubček's government to accept the reversal of its reforms. Soviet troops stayed in Czechoslovakia until 1991. In April 1969 Dubček was removed and replaced by Gustáv Husák, who presided over the period known as "normalisation". Jan Palach's protest in January 1969 became a symbol of resistance, and a small memorial to him lies in front of the National Museum.

Many people lost their jobs and tens of thousands left the country. Writers, filmmakers and academics were banned from their professions. Our Czech cinema history covers the impact on film.

Why it still matters

The Prague Spring is often seen as a test case: reform from inside a communist system, ended by outside force. It shaped Czech politics for the next two decades and still colours how Czechs think about Russia. Each August brings ceremonies and exhibitions. The final change came in 1989 with the Velvet Revolution; see the Velvet Revolution explained.

Seeing the traces

Wenceslas Square is the main site. The National Museum bullet marks and the Palach memorial are the two things to look for. The Czech Radio building stands on Vinohradská street, with a memorial to those killed in August 1968. For the whole period, see communist Czechoslovakia explained.

How to approach it

The invasion is within living memory, and many Czechs have family stories. Listen. This isn't pub-quiz material. If someone shares a memory, ask where they were, not what they thought.

Do this today

Take the metro to Muzeum, find the pockmarks on the museum's façade and stand for a minute at the Palach memorial. Then walk to the top of Wenceslas Square and look down: the crowds gathered here in 1968 and again in 1989.