🔭 Scientific instrument

Petri dish

Placa de Petri

Date
1887 · confidence high
Place
Berlin, Germany
Credited to
Julius Richard Petri (Robert Koch's laboratory)
Field
Life & health

What it is

Working in Koch's laboratory, Petri simplified the method of culturing bacteria on glass plates, shaping the loose-lidded circular dish that today is the most common instrument in biology laboratories.

What it led to

  • Standardisation of microbiological culture
  • Discovery of penicillin in a Petri-dish culture (Fleming, 1928)
🕸️ View in the graph

Built on

Made possible

Links

Sources✓ verified 2026-09-25