42

AD 42 in other calendars
Gregorian calendar	AD 42; XLII
Ab urbe condita	795
Assyrian calendar	4792
Balinese saka calendar	N/A
Bengali calendar	−551
Berber calendar	992
Buddhist calendar	586
Burmese calendar	−596
Byzantine calendar	5550–5551
Chinese calendar	辛丑年 (Metal Ox); 2738 or 2678; — to —; 壬寅年 (Water Tiger); 2739 or 2679
Coptic calendar	−242 – −241
Discordian calendar	1208
Ethiopian calendar	34–35
Hebrew calendar	3802–3803
Hindu calendars
- Vikram Samvat	98–99
- Shaka Samvat	N/A
- Kali Yuga	3142–3143
Holocene calendar	10042
Iranian calendar	580 BP – 579 BP
Islamic calendar	598 BH – 597 BH
Javanese calendar	N/A
Julian calendar	AD 42; XLII
Korean calendar	2375
Minguo calendar	1870 before ROC; 民前1870年
Nanakshahi calendar	−1426
Seleucid era	353/354 AG
Thai solar calendar	584–585
Tibetan calendar	阴金牛年; (female Iron-Ox); 168 or −213 or −985; — to —; 阳水虎年; (male Water-Tiger); 169 or −212 or −984

Millennium:	1st millennium
Centuries:	1st century BC – 1st century – 2nd century
Decades:	10s 20s 30s – 40s – 50s 60s 70s
Years:	39 40 41 – 42 – 43 44 45

42 is a year in the 1st century. It was a common year starting on Monday of the Julian calendar. At the time, it was known as the Year of the Consulship of Caesar and Piso.

Events

Romans take control of Ceuta.
Lands now known as Algeria and Morocco become a Roman province.
The Dalmatian legate Furius Camillus Scribonianus revolts. His troops do not support him and the rebellion quickly ends.
Claudius starts building the Port of Ostia.

25 January: the apostle Paul becomes a Christian. The exact date is not known, but the Catholic Church has chosen to celebrate it on this date.