May History

Click a date in the May calendar to the right for a timeline of all May events on that day, listed chronologically by year. Below is a list of important May events.

Click any event title to read more about that event. Every event page has a list of important names, places, and topics — click them to see a timeline of events associated with them.

May Calendar

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Today's Major Events

Marriage of Ferdinand II of Aragon and Isabella I of Castile
Eunice Hill and Her Husband Make First Modern Claim of Alien Abduction
Basic Elements of Quantum Theory Announced by Max Planck at Berlin Physical Society