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[[File:1755212 ac630ac2.jpg|thumbnail|left|300px|Figure 1. Mothering Sunday is a popular holiday in Catholic and Protestant countries in Europe.]]__NOTOC__

Mother's Day, or sometimes called Mothering Day or Mothering Sunday, represents a holiday in celebration of mothers and motherhood. While the concept is fairly standard in many countries, it is also among the least uniform holidays, as many countries have celebrated this holiday from ancient periods. In the United States, Mother Day formally began in the early 20th century.