A holiday or day that starts with "A"?

Okay, I have this project and I have to come up with a thing to remember sine, cosine, and tangent. Here's mine, "Ophelia harvested amaryllis honey on _____."



I need to come up with a one word day or holiday or anything that sounds in place... and please, NO ARBOR DAYS!



ALSO- Does any one here know any cool girl names that begin with "O"?



~Thanks You Guys! ^.^

A holiday or day that starts with "A"?
Holidays:



Armed Forces Day, third Saturday in May

April Fools's Day, April 1

Ash Wednesday, February 6

All Saints Day, November 1

All Souls Day , November 2

Ascension Day, May 11



Girls Names;



Olivia

Ola

Olive

Ophelia
Reply:Australia Day? That was a few days ago
Reply:Arbor day.
Reply:ash Wednesday
Reply:All Saints Day

All Souls Day



Olysea ( prounched Oo-leasee-eeeaa)

Ollie

Olivia