What happened on 21 December?

8 events from the Ever-When timeline, ranked by how much they mattered.

1. 1925 Battleship Potemkin Sergei Eisenstein's silent classic with the Odessa Steps sequence.
2. 1937 Snow White and the Seven Dwarfs First full-length animated Disney feature; reshaped popular cinema.
3. 1988 Lockerbie bombing Pan Am 103 blown up over Scotland by Libyan agents.
4. 2015 SpaceX lands a first-stage booster Falcon 9 returns and lands intact, demonstrating reusable orbital rockets.
5. 1977 Born: Emmanuel Macron Centrist president of France from 2017; founded La République En Marche.
6. 1879 Ibsen's A Doll's House Founding play of modern realist drama - Nora's slamming door.
7. 1967 The Graduate released Coming-of-age film about Benjamin Braddock; emblem of the 1960s generation gap.
8. 1968 Once Upon a Time in the West Leone's operatic western, cut to a score Morricone composed before filming so the actors could move to it — Henry Fonda cast against type as a child-killing gunman.