National Barbecue Day is observed worldwide every May 16, celebrating the popular summer pastime of barbecuing. The term "barbecue" originates from the Spanish word "barbacoa," referring to cooking meat over an open fire. In the United States, barbecue has a rich history dating back to colonial times, with the word first mentioned in 1672 by explorer John Lederer. American barbecue has evolved into distinct regional styles, including Carolina, Kansas City, Memphis, and Texas barbecue, each characterized by specific meats and sauces. Common barbecue sides include coleslaw, baked beans, and cornbread, and there are also many vegan and vegetarian options available. This unofficial holiday encourages people to gather, enjoy grilled foods, and experiment with new recipes, making it a perfect occasion for socializing and culinary creativity.