225 BC Chr.

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Heads of state

225 BC Chr.
Gallia cisalpina with the tribal areas including the Boier ("Boi"), Insubrer ("Insubri"), Lingonen ("Lingoni"), Veneter ("Veneti") and Cenomani ("Cenomani")
The Celtic War begins in Northern Italy .
225 BC In other calendars
Buddhist calendar 319/320 (southern Buddhism); 318/319 (alternative calculation according to Buddha's Parinirvana )
Chinese calendar 41st (42nd) cycle , year of the fire-rat丙子 ( at the beginning of the year wood-pig 乙亥)
Greek calendar 3rd / 4th Year of the 138th Olympiad
Jewish calendar 3536/37
Roman calendar from urbe condita DXXIX (529)
Seleucid era Babylon: 86/87 (turn of April); Syria: 87/88 (turn of the year October)

Events

Politics and world events

Western Mediterranean

Eastern Mediterranean

Asia

Silver coin of Ariarathes III ( Cabinet des Médailles , Paris)

economy

  • around 225 BC BC: The Romans start minting gold coins .

science and technology

  • around 225 BC Chr .: Eratosthenes calculates from the different positions of the sun in Alexandria and Syene the circumference of the earth at 252,000 stages, which is quite close to the actual value.
  • around 225 BC Chr .: Apollonios von Perge wrote a groundbreaking work on the conic sections .

Died

Web links

Commons : 225 BC Chr.  - collection of pictures, videos and audio files