The 28th century BC
5 recorded events across 3 years of the 28th century BC, 2800 BC to 2701 BC. 3 of them are dated to a specific year; the rest are recorded only as belonging to the 28th century BC. The largest categories are empires & countries (2), people (2) and architecture & engineering (1).
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Busiest years
Every year in the 28th century BC
Years with no recorded events are omitted. The number is how many events are dated precisely to that year; entries known only to a century or decade are listed on the year page separately.