It has been more than 46 years since the royal wedding on April 28, 1950 of Majesties King Bhumiphol Adulyadej and Queen Sirikit. Her Majesty's selfless dedication has since been evident and appreciated by her subjects throughout the nation. On October 22, 1956 when His Majesty entered the monkhood. Queen Sirikit, the second Queen of the Chakri Dynasty, was appointed Queen Regent.

Despite her high office as queen of the nation. Her Majesty, when free from official funditions, is a mother highly regarded by her children. She brought them up in the mold of traditional Thai values in which the junior pay respect to the elder, obey their seniors and learn to be self-sufficient. The benevolence of Her Majesty the Queen bostowed on her subjects, including those living in remote rural areas, explains the love she has earned from her people who regard her as Mother of the Populace. Thus, August 12, more than just the day the nation celebrates Her Majesty's birthday, it is also observed as National Mother's Day.

Premier General P. Pibulasongkram first introduced Mother's Day to Thailand in 1950 when the day was celebrated on April 15. On this day, a religious ceremony was held alongside a National Mother contest and Mother's Day Slogan competition. In 1976, however, April 15 was replaced by Her Majesty the Queen's birthday on August 12.

Today, while jasmine, symbolic of the selfless virtue of a mother who gives life to her children, is seen everywhere. National flags decorate buildings to wish Her Majesty many happy returns of the day and a long life. Charitable activities, food offering to monks and donations are part of the events of the day to express children's gratitiude to every mother.