Saint Valentine's Day
February 14 became the date for exchanging love messages and St. Valentine became the patron saint of lovers. the date was marked by sending simple gifts such as flowers.
In Great Britain Valentine's Day began to be popularly celebrated around the seventeenth century. By the middle of the eighteenth century it was common for friends and lovers in all social classes to exchange small tokens of affection or handwritten notes.
By the end of the century, printed cards began to replace written letters due to improvements in printing technology.
Americans probably began exchanging hand-made valentines in the early 1700s. In the 1840s Esther A. Howland, knows as Mother of valentine, began to sell the first mass-produced valentines in America.