100s (decade)

Roman Empire

• Emperor Trajan and Sus Julius 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.
• The Roman Army reaches 300,000 soldiers.
• Titus Avidius Quietus' rule as governor of Roman Britain ends.
• Timgad (Thamugas), a Roman colonial town in North Africa is founded by Trajan.
• Trajan creates a policy intended to restore the former economic supremacy of Italy.
• The future emperor, Hadrian, marries Vibia Sabina.

Europe

• Lions became extinct in the Balkans in the AD 100s

Asia

• Pakores (last king of the Indo-Parthian Kingdom) takes the throne.
• Paper is used by the general populace in China, starting around this year.
• The Kingdom of Himyarite is conquered by the Hadramaut.

Americas

• The Hopewell tradition begins in what is now Ohio c. this date.
• Teotihuacan, at the center of Mexico, reaches a population of 50,000.
• The Moche civilization emerges, and starts building a society in present-day Peru.

Arts and sciences

• In China, the wheelbarrow makes its first appearance.
• Main hall, Markets of Trajan, 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.^[1]
• 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 c. this year.

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