18 BC

Year 18 BC was either a common year starting on Friday, Saturday or Sunday or a leap year starting on Saturday of the Julian calendar. At the time, it was known as the Year of the Consulship of Lentulus and Lentulus.

Millennium:	1st millennium BC
Centuries:	2nd century BC – 1st century BC – 1st century
Decades:	40s BC  30s BC  20s BC  – 10s BC –  0s BC  0s  10s
Years:	21 BC 20 BC 19 BC – 18 BC – 17 BC 16 BC 15 BC

18 BC in other calendars

Gregorian calendar	18 BC XVII BC
Ab urbe condita	736
Ancient Greek era	190th Olympiad, year 3
Assyrian calendar	4733
Balinese saka calendar	N/A
Bengali calendar	−610
Berber calendar	933
Buddhist calendar	527
Burmese calendar	−655
Byzantine calendar	5491–5492
Chinese calendar	壬寅年 (Water Tiger) 2679 or 2619     — to — 癸卯年 (Water Rabbit) 2680 or 2620
Coptic calendar	−301 – −300
Discordian calendar	1149
Ethiopian calendar	−25 – −24
Hebrew calendar	3743–3744
Hindu calendars
- Vikram Samvat	39–40
- Shaka Samvat	N/A
- Kali Yuga	3083–3084
Holocene calendar	9983
Iranian calendar	639 BP – 638 BP
Islamic calendar	659 BH – 658 BH
Javanese calendar	N/A
Julian calendar	18 BC XVII BC
Korean calendar	2316
Minguo calendar	1929 before ROC 民前1929年
Nanakshahi calendar	−1485
Seleucid era	294/295 AG
Thai solar calendar	525–526
Tibetan calendar	阳水虎年 (male Water-Tiger) 109 or −272 or −1044     — to — 阴水兔年 (female Water-Rabbit) 110 or −271 or −1043

Events

• Caesar Augustus introduced the Lex Julia (Julian Laws)
• Onjo becomes the first ruler of the Korean kingdom of Baekje