thumb|258x258px|A view of Hadrian's Wall, which began construction in 122.
# 120s Overview The 120s refers to the decade from 120 to 129 AD, a period in the Roman Empire when major construction projects like Hadrian's Wall were initiated to strengthen imperial borders and consolidate control over distant territories. This era matters historically because it represents a time of significant Roman engineering achievement and frontier policy development under Emperor Hadrian's rule.
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thumb|258x258px|A view of Hadrian's Wall, which began construction in 122.
The 120s was a decade that ran from January 1, AD 120, to December 31, AD 129.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).