Evergreen date guide
What is celebrated on January 3?
See the observances and verified observance-history milestones attached to January 3. Each observance keeps its own source and date details.
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All observances on this date
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Some dates vary by year or need fresh confirmation before they appear.
Some dates vary by year or need fresh confirmation before they appear.
How dates are selected
This page combines fixed annual dates, reusable calendar rules and year-specific dates confirmed for 2026. Variable or historical dates are included only when they are clearly supported.
Read the methodology →