Ngày của mẹ - Mother's Day is the third largest holiday after Christmas and Easter. -Carnations are flowers for Mother's Day represents. - Anna M. Jarvis, an American citizen, who first devised the idea of the holiday. - In 1914, U.S. President Wilson has decided to officially Mother's Day will be thesecond Sunday in May every year. - At present, Mother's Day is held in many countries worldwide. However, notevery place is held on the same day: + Mexico, Hong Kong, India, Malaysia, Pakistan, Qatar, Saudi Arabia, Singaporeorganized Mother's Day celebrated on May 10. + The South Africa, Spain, Portugal, Hungary Mother's Day held on the first Sunday of May. + The French, Swedish Mother's Day held on the last Sunday of May. + The Norwegian Mother's Day held on the second Sunday in February. + The Polish Mother's Day held on May 26. + The Mother's Day Argentina held on the second Sunday in October. + The Thai Mother's Day held on August 12. - Statistics show that Mother's Day is a day of greeting cards sent in the third most. - The restaurant is always crowded restaurant on Mother's Day. - Multiple phone calls made on Mother's Day than all other times of year. (Trích Nguyen Dang Tieu Yen)