Which came first? · Tricky
Which came first: Heinz or Radioactivity?
Heinz came first, in 1869 (founded). Radioactivity followed 27 years later, in 1896 (discovered).
- First1869
Heinz
company · foundedHeinz began in 1869, when Henry Heinz sold horseradish made from his mother's recipe.
- Second1896
Radioactivity
discovery · discoveredHenri Becquerel discovered radioactivity in 1896, by leaving uranium salts on photographic plates.
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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.