Mother's Day is a celebration that honors mothers and motherhood, maternal bonds, and the influence of mothers in society. It is celebrated on various days in many parts of the world, most commonly in March, April, or May.
In 1912, Anna Jarvis trademarked the phrases "second Sunday in May" and "Mother's Day", and created the Mother's Day International Association.
She was specific about the location of the apostrophe; it was to be a singular possessive, for each family to honour their mother, not a plural possessive commemorating all mothers in the world.
In most countries, Mother's Day is a recent observance derived from the holiday as it has evolved in the United States. When it was adopted by other countries and cultures, it was given different meanings, associated to different events (religious, historical or legendary), and celebrated on a different date or dates.
Happy Mother's Day!
Grattis på Mors Dag