Which came first? · Tricky
Which came first: Planet of the Apes or the Sydney Opera House?
Planet of the Apes came first, in 1968 (released). The Sydney Opera House followed 5 years later, in 1973 (opened).
- First1968
Planet of the Apes
film · releasedPlanet of the Apes, from 1968, was based on a Pierre Boulle novel whose film rights were bought before the book was even published.
- Second1973
The Sydney Opera House
landmark · openedThe Sydney Opera House opened in 1973, ten years late and hugely over budget.
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All which-came-first pairs · About Older Than You Think · Quiz games
Years from Wikidata, each checked against the item’s English Wikipedia article on 2026-10-18. A year stands for what its label says: a founding, a first patent, a premiere.