New Year’s Day 1866
– January 1 – was in
week 1
Monday, January 1 – Sunday, January 7, 1866
Holidays
Mon, Jan 1:
New Year’s Day
Calendar with all holidays in 1866
Enter a week number or a date
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9
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29 2025
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19 May
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memorial day 2025
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1866 calendar
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Calendar with week numbers and holidays
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