Christmas is celebrated on December 25th.New Year's Eve celebrations take place at midnight on December 31st.Valentine's Day is celebrated on February 14th.Mardi Gras is celebrated in New Orleans for about two weeks before and through Shrove Tuesday, the day before Ash Wednesday.The St. Patrick's Festival in Dublin, Ireland is celebrated on March 17th.The Chicago River is painted green on Saint Patrick's Day celebrated on March 17th.Anzac Day in Australia and New Zealand is commenorated on April 25th.Canada Day is celebrated on the 1st of July.American Independence Day is celebrated on the 4th of July.Halloween is celebrated on October 31st (thirty-first).American Thanksgiving is celebrated on the 4th Thursday of November.ordinal numbers copy