20

This page is about the year 20 AD. For the actual number, see twenty.

AD 20 in other calendars

Gregorian calendar	AD 20 XX
Ab urbe condita	773
Assyrian calendar	4770
Balinese saka calendar	N/A
Bengali calendar	−573
Berber calendar	970
Buddhist calendar	564
Burmese calendar	−618
Byzantine calendar	5528–5529
Chinese calendar	己卯年 (Earth Rabbit) 2716 or 2656     — to — 庚辰年 (Metal Dragon) 2717 or 2657
Coptic calendar	−264 – −263
Discordian calendar	1186
Ethiopian calendar	12–13
Hebrew calendar	3780–3781
Hindu calendars
- Vikram Samvat	76–77
- Shaka Samvat	N/A
- Kali Yuga	3120–3121
Holocene calendar	10020
Iranian calendar	602 BP – 601 BP
Islamic calendar	621 BH – 619 BH
Javanese calendar	N/A
Julian calendar	AD 20 XX
Korean calendar	2353
Minguo calendar	1892 before ROC 民前1892年
Nanakshahi calendar	−1448
Seleucid era	331/332 AG
Thai solar calendar	562–563
Tibetan calendar	ས་མོ་ཡོས་ལོ་ (female Earth-Hare) 146 or −235 or −1007     — to — ལྕགས་ཕོ་འབྲུག་ལོ་ (male Iron-Dragon) 147 or −234 or −1006

20 is a year in the 1st century. It was a leap year starting on Monday of the Julian calendar. At the time, it was known as the Year of the Consulship of Marcus Valerius Messalla Barbatus and Cotta.

Events

• Tiberias is built on the Sea of Galilee by Herod Antipas.
• Galba is a Roman praetor.
• Marcus Valerius Messalla Barbatus becomes a consul.
• First year of Dihuang era of the Chinese Xin Dynasty.
• Philo defines philosophy as the maidservant of theology.

Deaths

• Gnaeus Calpurnius Piso, Roman statesman and governor of Syria (b. 44 BC)
• Vipsania Agrippina, wife of Gaius Asinius Gallus and former wife of Tiberius (b. 36 BC)