Mother's Day is a holiday honouring mothers, celebrated (on various days) in many places around the world. Mothers often receive gifts on this day. Mother's Day is a strange time of year for mail in many countries. In 1973, mail delivery through the U.S. Postal Service was delayed for eight days because of the amount of mail. Telephone networks are also at their busiest on Mother's Day. Mother's Day is the number one holiday for flowers purchased throughout the year.
Different countries celebrate Mother's Day on various days of the year because the day has a number of different origins. One school of thought claims this day emerged from a custom of mother worship in ancient Greece. Mother worship — which kept a festival to Cybele, a great mother of gods, and Rhea, the wife of Cronus — was held around the Vernal Equinox around Asia Minor and eventually in Rome itself from the Ides of March (March 15) to March 18. The Romans also had another holiday, Matronalia, that was dedicated to Juno, though mothers were usually given gifts on this day.