AD 78

AD 78 in various calendars
Gregorian calendar	AD 78; LXXVIII
Ab urbe condita	831
Assyrian calendar	4828
Balinese saka calendar	−1 – 0
Bengali calendar	−515
Berber calendar	1028
Buddhist calendar	622
Burmese calendar	−560
Byzantine calendar	5586–5587
Chinese calendar	丁丑年 (Fire Ox); 2775 or 2568; — to —; 戊寅年 (Earth Tiger); 2776 or 2569
Coptic calendar	−206 – −205
Discordian calendar	1244
Ethiopian calendar	70–71
Hebrew calendar	3838–3839
Hindu calendars
- Vikram Samvat	134–135
- Shaka Samvat	−1 – 0
- Kali Yuga	3178–3179
Holocene calendar	10078
Iranian calendar	544 BP – 543 BP
Islamic calendar	561 BH – 560 BH
Javanese calendar	N/A
Julian calendar	AD 78; LXXVIII
Korean calendar	2411
Minguo calendar	1834 before ROC; 民前1834年
Nanakshahi calendar	−1390
Seleucid era	389/390 AG
Thai solar calendar	620–621
Tibetan calendar	阴火牛年; (female Fire-Ox); 204 or −177 or −949; — to —; 阳土虎年; (male Earth-Tiger); 205 or −176 or −948

Millennium:	1st millennium
Centuries:	1st century BC; 1st century ; 2nd century;
Decades:	50s; 60s; 70s ; 80s; 90s;
Years:	75; 76; 77; AD 78 ; 79; 80; 81;

AD 78 (LXXVIII) was a common year starting on Thursday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Novius and Commodus (or, less frequently, year 831 Ab urbe condita). The denomination AD 78 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.

Events

The Romans conquer the Ordovices, located in present-day northern Wales, as well as the Silures.
Gnaeus Julius Agricola replaces Sextus Julius Frontinus as governor of Roman Britain, which leads to the conquering of portions of Wales and northern England. ^[1]

Indian Prince Aji Caka introduces the Sanskrit language and Pallawa script, used to inscribe Javanese words and phrases, to the Indonesian islands.
Emperor Kadphises of the Kushan Empire sends a delegation to Rome, to seek support against the Parthians.
This is the base year (year zero) of the Saka era used by some Hindu calendars, the Indian national calendar, and the Cambodian Buddhist calendar. It begins near the vernal equinox for the civil solar calendar, but begins opposite the star Spica for the traditional solar calendar.
Pacorus II becomes king of the Parthian Empire (r. 78–115).

The Chinese philosopher Wang Chong (Wang-Ch'ung) claims all phenomena have material causes.