• The first two Punic Wars between Carthage and Rome over dominance in western Mediterranean
• Rome conquers Spain
• Great Wall of China begun
• Indian traders regularly visited Arabia

Significant persons:

• The Ptolemaic dynasty rules Egypt
• Apollonius of Perga, mathematician
• Archimedes of Syracuse, mathematician, physicist, and engineer
• Euclid, mathematician
• Hannibal, military leader of Carthage
• Qin Shi Huang Di, Chinese emperor

Inventions, Discoveries, Introductions

• Eratosthenes accurately calculates diameter of the Earth

Decades and Years

300s BC	309 BC	308 BC	307 BC	306 BC	305 BC	304 BC	303 BC	302 BC	301 BC	300 BC
290s BC	299 BC	298 BC	297 BC	296 BC	295 BC	294 BC	293 BC	292 BC	291 BC	290 BC
280s BC	289 BC	288 BC	287 BC	286 BC	285 BC	284 BC	283 BC	282 BC	281 BC	280 BC
270s BC	279 BC	278 BC	277 BC	276 BC	275 BC	274 BC	273 BC	272 BC	271 BC	270 BC
260s BC	269 BC	268 BC	267 BC	266 BC	265 BC	264 BC	263 BC	262 BC	261 BC	260 BC
250s BC	259 BC	258 BC	257 BC	256 BC	255 BC	254 BC	253 BC	252 BC	251 BC	250 BC
240s BC	249 BC	248 BC	247 BC	246 BC	245 BC	244 BC	243 BC	242 BC	241 BC	240 BC
230s BC	239 BC	238 BC	237 BC	236 BC	235 BC	234 BC	233 BC	232 BC	231 BC	230 BC
220s BC	229 BC	228 BC	227 BC	226 BC	225 BC	224 BC	223 BC	222 BC	221 BC	220 BC
210s BC	219 BC	218 BC	217 BC	216 BC	215 BC	214 BC	213 BC	212 BC	211 BC	210 BC
200s BC	209 BC	208 BC	207 BC	206 BC	205 BC	204 BC	203 BC	202 BC	201 BC	200 BC
190s BC	199 BC	198 BC	197 BC	196 BC	195 BC	194 BC	193 BC	192 BC	191 BC	190 BC