Pantheon

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Architecture · c. 113–125 · Rome · Europe

A 43 m concrete dome with an oculus — still the largest unreinforced dome

Pantheon — NikonZ7II · CC BY-SA 4.0 · Wikimedia Commons

Style: Ancient Roman art — Concrete, arch and dome serving the empire; truthful portraits and chronicle reliefs
Century: 2nd century

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Made around the same time (±30 years)

c. 107–113 Trajan's Column — Attributed to Apollodorus of Damascus · Ancient Roman art · Trajan's Forum, Rome
c. 100 Seikilos epitaph — Seikilos · Tralles, Asia Minor
c. 127 Kanishka casket · Gandhara art · Peshawar

What was happening in the world

105 Cai Lun and the invention of paper
c. 100 The rise of Aksum