The Origin of May Day stems back to early Christian times. According to Wikipedia it evolved like this:
As Europe became Christianised, the pagan holidays lost their religious character and May Day changed into a popular secular celebration. A significant celebration of May Day occurs in Germany where it is one of several days on which St. Walburga, credited with bringing Christianity to Germany, is celebrated. The secular versions of May Day, observed in Europe and America, may be best known for their traditions of dancing around the maypole and crowning the Queen of May. Fading in popularity since the late 20th century is the giving of “May baskets,” small baskets of sweets or flowers, usually left anonymously on neighbours’ doorsteps.
Today, go out and surprise a neighbor, family member or co-worker with a basket of flowers. Wouldn’t it be nice to make them smile and change the conversation tomorrow to “This cool basket of flowers was on my doorstep yesterday”.
Happy May Day!