Some ideas from a search:
March 1 - Peace Corps Day, World Compliment Day, March 2 - Old Stuff Day, March 3 - Caregiver Appreciation Day, National Anthem Day, March 4 - Hug a GI day, March 5 - Multiple Personality Day, March 6 - Dentist's Day, March 7 - National Cereal Day, March 8 - International Working Women's Day, March 9 - Panic Day, March 10 - Middle Name Pride Day, March 11 - Johnny Appleseed Day, Worship of Tools Day, March 12 - Girls Scouts Day, March 13 - Genealogy Day, March 14 - National Pi Day, March 15 - Ides of March, March 16 - Freedom of Information Day, St. Urho's Day (Go Finns!), March 17 - St. Patrick's Day (Go Irish!), March 18 - Goddess of Fertility Day, March 19 - Poultry Day, March 20 - Extraterrestrial Abduction Day, International Earth Day, Spring Equinox, March 21 - World Poetry Day, March 22 - National Goof Off Day, March 23 - Melba Toast Day, National Puppy Day, March 24 - National Chocolate Covered Raisin Day, March 25 - Feast of Annunciation, Waffle Day, March 26 - Live Long and Prosper Day, Make Up Your Own Holiday Day, March 27 - National "Joe" Day, Passover, March 28 - Palm Sunday, March 29 - National Mom and Pop Business Owners Day, Smoke and Mirrors Day, March 30 - National Doctor's Day, Take a Walk in the Park Day, March 31 - Bunsen Burner Day, National Crayon Day...
Pretty much anything goes!
"...I'd discuss the holy books with the learned man...and that would be the sweetest thing of all...would it foil some vast, eternal plan..." Hamick Fiddler on the Roof
La Belle Dame Sans Mercy, Merci, Maria - Chartier, Keats, Hamik?