Science Fair Project Encyclopedia
225 BC
Centuries: 4th century BC - 3rd century BC - 2nd century BC
Decades: 270s BC 260s BC 250s BC 240s BC 230s BC - 220s BC - 210s BC 200s BC 190s BC 180s BC 170s BC
Years: 230 BC 229 BC 228 BC 227 BC 226 BC - 225 BC - 224 BC 223 BC 222 BC 221 BC 220 BC
Events
- Seleucus III Ceraunus succeeds his father Seleucus II Callinicus as king of the Seleucid dynasty.
- Battle of Faesulae , Romans are defeated by the Gauls of Northern Italy.
- Erastothenes of Cyrene calculates the circumference of the Earth and invents armillary sphere
- Apollonius of Perga writes On Conic Sections and names the ellipse, parabola, and hyperbola.
- State of Qin conquered the state of Wei in China.
Births
Deaths
- Fan Ju
- Seleucus II Callinicus, king of the Seleucid dynasty. (riding accident)
10-26-2009 08:16:03
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The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details