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What is the earliest written date? - History Stack Exchange
When did humans start numbering years? - History Stack Exchange
Why does the first decade of the 21st century start with 2000?
How are dates in BCE ordered? - History Stack Exchange
What was the first known war in history?
Rules to correctly write an ancient Roman date
When was Jerusalem destroyed by the Babylonians?
Where was the first European electric tramway operated?
Are there any extant original first-century manuscripts of any of ...
calendar - When did Europeans make Sunday rather than Saturday …