May 15(redirected from 15 May)
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Armed Forces Day (Third Saturday in May) May 15, 2021
Black Ships Festival (Third weekend in May in Shimoda, Japan; last full weekend in July in Rhode Island) May 15, 2021
Boston Pops (First week in May through middle of July)
Lemuralia (May 9, 11, 15)
National Family Month (Second Sunday in May through the third Sunday in June)
Legal Holidays by Countries