National Celebrations:
- New Year's Day (January 1)
- Martin Luther King Day (Third Monday in January)
- Abraham Lincoln's Birthday (February 12)
- Presidents' Day (Third Monday in February)
- George Washington's Birthday (February 22)
- Arbor Day (In April or close to April 22 or on that day)
- Mother's Day (Second Sunday in May)
- Memorial Day (Last Monday in May)
- Flag Day (June 14)
- Father's Day (Third Sunday in June)
- Independence Day (July 4)
- Labor Day (First Monday in September)
- Columbus Day (Second Monday in October)
- Veterans' Day (November 11)
- Thanksgiving Day (Fourth Thursday in November)
- Christmas Day (December 25)
Religious Celebrations:
- Easter (A Sunday between March 22 and April 25)
Fun Days:
- St. Valentine's Day (February 14)
- April Fool's Day (April 1)
- Halloween (October 31)
Ethnic and Regional Celebrations:
- Chinese New Year (Sometime between January 21 - February 19)
- Mardi Gras (February/March)
- St. Patrick's Day (March 17)
- Cinco De Mayo (May 5)
- Native American Pow-Wows (March - August)
http://www.usemb.se/Holidays/celebrate/