4th century BC

(5th century BC - 4th century BC - 3rd century BC - other centuries)

(2nd millennium BC - 1st millennium BC - 1st millennium AD)

Events:

Invasion of the Celts into Ireland
Kingdom of Macedon conquers Persian empire
Romans build first aqueduct
Chinese use bellows

Significant persons:

Plato, philosopher (c. 427 - 347 BC).
Tollund Man, Human sacrifice victim on the Jutland Peninsula in Denmark, possibly the earliest known evidence for worship of Odin.
Aristotle, philosopher and scientist ( 384 - 322 BC).
Philip II of Macedon ( 382 - 336 BC, reigned 359 - 336 BC).
Mencius, Chinese philosopher and sage ( 371 - 289 BC).
Shang Yang, Prime Minister of Qin, his reform helped Qin to become the strongest country and later unified China (term 361 - 338 BC).
Alexander the Great, King of Macedon, invades Asia Minor, Persia and reaches India ( 356 - 323 BC, reigned 336 - 323 BC).

Inventions, Discoveries, Introductions

Oldest Brahmi script dates from this period (Brahmi is the ancestor of Indic scripts)

Decades and Years

400s BC 409 BC 408 BC 407 BC 406 BC 405 BC 404 BC 403 BC 402 BC 401 BC 400 BC
390s BC 399 BC 398 BC 397 BC 396 BC 395 BC 394 BC 393 BC 392 BC 391 BC 390 BC
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370s BC 379 BC 378 BC 377 BC 376 BC 375 BC 374 BC 373 BC 372 BC 371 BC 370 BC
360s BC 369 BC 368 BC 367 BC 366 BC 365 BC 364 BC 363 BC 362 BC 361 BC 360 BC
350s BC 359 BC 358 BC 357 BC 356 BC 355 BC 354 BC 353 BC 352 BC 351 BC 350 BC
340s BC 349 BC 348 BC 347 BC 346 BC 345 BC 344 BC 343 BC 342 BC 341 BC 340 BC
330s BC 339 BC 338 BC 337 BC 336 BC 335 BC 334 BC 333 BC 332 BC 331 BC 330 BC
320s BC 329 BC 328 BC 327 BC 326 BC 325 BC 324 BC 323 BC 322 BC 321 BC 320 BC
310s BC 319 BC 318 BC 317 BC 316 BC 315 BC 314 BC 313 BC 312 BC 311 BC 310 BC
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