How Valentine's Day Works
Esther Howland , the woman who produce the first commercial-grade American valentine in the 1840s , sell a then creative thinker - boggling $ 5,000 in card during her first year of business . The valentine industry in the United States has been flourish ever since . Today , 145 million Valentine ’s cards are sent in this country each class , according to Hallmark . The twenty-four hour period is also celebrate in Canada , Mexico , the United Kingdom and other country ....