Mother's day is one of the holidays of the year with a more unique story, as some would agree. It is celebrated at different dates in different countries. Here in Denmark the date is the second sunday in May, which is the most common date.   Click here, if you want to see, when mother's day is celebrated in other countries.   Mother's day was invented by the author and women's rights activist Julia Ward Howe in the United States in 1872. That mother's day ended up as the second sunday in May is down to Anna Jarvis, who made the day recognized, when she started the tradition in 1908. Mother's day has been an official holiday in the United States since 1914.   Here in Denmark the day was first celebrated by the baptist congregation in Rønne, Bornholm in 1910, but the actual establishment of the day in Denmark was not until 1929, when the association of Allied Brother's in Arms used the day to collect money for war widows and mothers, who had lost ...