483 BCE

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Centuries:	6th century BC - 5th century BC - 4th century BC
Decades:	510s BC 500s BC 490s BC - 480s BC - 470s BC 460s BC 450s BC
Years:	486 BC 485 BC 484 BC - 483 BC - 482 BC 481 BC 480 BC

483 BC by topic
Politics
State leaders - Sovereign states
Birth and death categories
Births - Deaths
Establishments and disestablishments categories
Establishments - Disestablishments v • d • e

**483 BC in other calendars**
Gregorian calendar	483 BC
Ab urbe condita	271
Armenian calendar	N/A
Bahá'í calendar	-2326 – -2325
Berber calendar	468
Buddhist calendar	62
Burmese calendar	-1120
Byzantine calendar	5026 – 5027
Chinese calendar	[[Sexagenary cycle\|]]年 (2154/2214) — to — [[Sexagenary cycle\|]]年 (2155/2215)
Coptic calendar	-766 – -765
Ethiopian calendar	-490 – -489
Hebrew calendar	3278 – 3279
Hindu calendars
- Vikram Samvat	-427 – -426
- Shaka Samvat	N/A
- Kali Yuga	2619 – 2620
Holocene calendar	9518
Iranian calendar	1104 BP – 1103 BP
Islamic calendar	1138 BH – 1137 BH
Japanese calendar
Korean calendar	1851
Thai solar calendar	61
v • d • e

Events

Xerxes I of Persia is encouraged by his cousin and brother-in-law, Mardonius, supported by a strong party of exiled Greeks, to take revenge for the defeat that Darius I suffered at the hands of the Greeks at Marathon in 490 BC. In response, Xerxes prepares for a major expedition to crush the Greeks. To avoid a repeat of the significant losses to the Persian fleet that occurred in 492 BC, Xerxes has a canal cut through the promontory of Mount Athos.

The Athenian archon Themistocles realises that the Greeks need to be able to beat the Persians at sea. To carry out this strategy, however, Athens needs far more warships (that is to say the newly developed, specialised triremes) than the 70 it has. Themistocles is initially opposed by other Athenian leaders. However, when the state-owned silver mines at Laurium become the site of a rich strike, Themistocles persuades the assembly, instead of "declaring a dividend," to devote the whole surplus to increasing the navy to a proposed 200 ships.

Gelon, the tyrant of Syracuse conquers the nearby Sicilian cities of Euboea and Megara Hyblaea, selling their common people into slavery and bringing their oligarchs to Syracuse.