AD 100

"100 (year)" redirects here. For 100 BC, see 100 BC.

For the AD 100 architectural design awards, see Architectural Digest.

100 (C) was a leap year starting on Wednesday of the Julian calendar, the 100th year of the Common Era (CE) and Anno Domini (AD) designations, the 100th year of the 1st millennium, the 100th and last year of the 1st century, and the 1st year of the 100s decade. As of the start of 100, the Gregorian calendar was 2 days behind the Julian calendar, which was the dominant calendar of the time.

AD 100 in various calendars

Gregorian calendar	AD 100 C
Ab urbe condita	853
Assyrian calendar	4850
Balinese saka calendar	21–22
Bengali calendar	−494 – −493
Berber calendar	1050
Buddhist calendar	644
Burmese calendar	−538
Byzantine calendar	5608–5609
Chinese calendar	己亥年 (Earth Pig) 2797 or 2590     — to — 庚子年 (Metal Rat) 2798 or 2591
Coptic calendar	−184 – −183
Discordian calendar	1266
Ethiopian calendar	92–93
Hebrew calendar	3860–3861
Hindu calendars
- Vikram Samvat	156–157
- Shaka Samvat	21–22
- Kali Yuga	3200–3201
Holocene calendar	10100
Iranian calendar	522 BP – 521 BP
Islamic calendar	538 BH – 537 BH
Javanese calendar	N/A
Julian calendar	AD 100 C
Korean calendar	2433
Minguo calendar	1812 before ROC 民前1812年
Nanakshahi calendar	−1368
Seleucid era	411/412 AG
Thai solar calendar	642–643
Tibetan calendar	ས་མོ་ཕག་ལོ་ (female Earth-Boar) 226 or −155 or −927     — to — ལྕགས་ཕོ་བྱི་བ་ལོ་ (male Iron-Rat) 227 or −154 or −926

The eastern hemisphere in AD 100

The world in AD 100

In the Roman Empire, it was sometimes referred to as year 853 ab urbe condita, i.e., 853 years since the founding of Rome in 753 B.C. The denomination AD 100 for this year has been used since the Early Middle Ages, when the Anno Domini calendar era became the prevalent method in Europe for naming years.

This year saw Pacores, the last king of the Indo-Parthian kingdom, ascend to the throne. In the Americas, the Moche culture developed around this time, and Teotihuacan, a major city at the centre of modern-day Mexico, reached a population of around 60,000–80,000.

Events

By place

Roman Empire

• Emperor Trajan and Frontinus become Roman consuls.
• Bricks become the primary building material in the Roman Empire.
• Pliny the Younger advances to consulship, giving his panegyric on Trajan in the process.^[1]
• The Imperial Roman army reaches 300,000 soldiers.
• Titus Avidius Quietus' rule as governor of Roman Britain ends.^[2]
• Timgad (Thamugas), a Roman colonial town in North Africa, is founded by Trajan.^[3]
• Trajan creates a policy intended to restore the former economic supremacy of Italy.
• The future emperor, Hadrian, marries Vibia Sabina.^[4]

Europe

• Lions have become extinct in Greece by this year.^[5][6]

Asia

• Pacores (last king of the Indo-Parthian kingdom) takes the throne.
• Paper is used by the general populace in China, starting around this year.

Americas

• The Hopewell tradition roughly begins in what is now Ohio.
• Teotihuacan, a major city at the centre of modern-day Mexico, reaches a population of around 60,000–80,000.^[7]
• The Moche culture emerges, and starts building a society in present-day Peru.^[8]

By topic

Arts and sciences

• In China, the wheelbarrow makes its first appearance.
• Main hall, Trajan's Market, Rome, is made (until AD 112).

Religion

• Appearance of the first Christian dogma and formulas regarding morality.
• The Gospel of John is widely believed to have been written around this date.^[9]
• The compilation of the Kama Sutra begins in India.
• The Temple of the God of Medicine is built in Anguo, China.
• The Fourth Buddhist Council is convened in Jalandhara, Punjab.

Births

• Fa Zhen (or Gaoqing), Chinese scholar (d. 188)
• Approximate date
  • Faustina the Elder, Roman empress (d. 140)
  • Justin Martyr, Christian apologist and saint (d. 165)
  • Marcus Cornelius Fronto, Roman grammarian, rhetorician and advocate (d. 170)
  • Ptolemy, Greek astrologer, astronomer, geographer and mathematician (d. 170)
  • Quintus Junius Rusticus, Roman teacher and politician (d. 170)
  • Quintus Tineius Sacerdos Clemens, Roman politician (d. 170)

Deaths

• Herod Agrippa II, Jewish king of Judea (b. AD 27)
• Apollonius of Tyana, Greek philosopher (b. AD 15)
• Josephus, Jewish historian and writer (b. AD 37)
• John the Apostle of Jesus Christ (approximate date, b. AD 6)
• Wang Chong, Chinese philosopher (b. AD 27)