In the past, Any1 Gynoid had written for the Newser, as well as CNN iReports. While she has left the paper, she occasionally keeps in touch with us. She recently sent us a submission about a party she had went to recently: Cinco De Mayo. While many of us north of the border have "Cinco De Mayo" parties in bars and other places around the fifth of May, just exactly what is the holiday? And as it turns out, the day is also celebrated on the other side of the Atlantic, but for another reason.