According to some testimonies, March 15 was the first date chosen to celebrate Mother's Day during the Roman Empire.
To get to celebrate this date in May, we must go to the United States, when two American housewives, Julia Ward Howe and Anna Reeves Jarvis, raised the voice of all mothers who had been victims of the American Civil War that lasted four years. They also petitioned the White House to establish Mother's Day on the second Sunday in May. This request was transferred and accepted by the former President of the United States, Woodrow Wilson.
In Spain, the initiative came from Julio Menéndez García, an official of the Postal Service of Carlet (Valencia), also a poet, who encouraged the population to celebrate the love of a mother.
Finally, on Monday, October 4, 1926, what can be considered the first Mother's Day was celebrated in the capital of Spain and in some other cities.
In imitation of the United States and other European countries, years later, the celebration began to be held on the second Sunday of May, with children bringing flowers to their mothers.
At the end of the Civil War, and through the mediation of the Church, the homage to mothers began to be celebrated throughout Spain on December 8, coinciding with the feast of the Immaculate Conception, which worshipped the Virgin Mary.
In 1965, the date of the first Sunday in May was definitively established as the day on which mothers are celebrated, a date that has survived to the present day.
Since then it has acquired a more commercial sense in which children and fathers are encouraged to give gifts to the mothers of the family.
The stamp reproduces with a naïf typography the word "Mom" in black on white.