As the city pays homage to the victims of the 1945 nuclear bombing, the memories are being preserved by the next generation. Survivors tell their stories to "successors" who in turn spread the word.

On 27 January 2002, Lagos, Nigeria's commercial capital, witnessed one of the biggest disasters that have ever hit the state and country. 20 years after, the memory is still fresh. A continued blast at the military cantonment in Ikeja left many dead. The bulk of the victims did not die under the exploding shells. Most were hauled from canals into which they jumped or were driven - some still in their cars - by the huge crowds fleeing the shrapnel descending from the sky.

The bulk of the victims did not die under the exploding shells. Most were hauled from canals into which they jumped or were driven - some still in their cars - by the huge crowds fleeing the shrapnel descending from the sky. Full video: January 27

In November, shortly before the 30th anniversary of the fall of the Soviet Union, the Russian authorities moved to close down one of the country's oldest and most influential NGOs, Memorial, which was dedicated to preserving the memory of Stalin-era repressions. Despite everything, the group's historians are determined to continue the fight to open up the archives of the Soviet secret services. FRANCE 24's Elena Volochine and Gulliver Cragg report, with illustrations by Sofiya Voznaya.

This week, we're following in the unmistakable stride of Charles de Gaulle, as we mark 80 years since his June 18 Appeal to join the Free French Forces against Nazi occupation. Of course, it was actually from London, on the BBC airwaves, that the General launched his call to action, just four days after victorious German troops paraded down Paris's Champs-Élysées. But while the date is forever ingrained in France's collective memory for its historic significance, the truth is that it didn't immediately play out as the founding moment of the French Resistance.

Real Madrid's players observed a minute's silence in memory of Raymond Kopa on Friday.