With holidays, do I use the article? Do certain days use the article, while others don't?
www.germanveryeasy.com/zu
On this page, the examples below were used:
zum Muttertag
zu Silvester
zu Ostern
zu Halloween
Why don't "Silvester", "Ostern", and "Halloween" use the article? And, a bit inverted now, but, why does Mother's Day have it and the others don't?