National BBQ Day is celebrated on May 16 in the United States, highlighting the country's love for barbecuing. This day encourages people to gather with friends and family to enjoy outdoor cooking, marking the beginning of the summer grilling season. Common customs include hosting backyard barbecues, participating in barbecue eating competitions, and experimenting with new barbecue recipes. Barbecuing has deep roots in American culture, with historical references dating back to colonial times and significant events being celebrated with cookouts. It has become a tradition at the White House, popularized by President Lyndon B. Johnson. Overall, National BBQ Day serves as a reminder of the delicious food and social gatherings associated with this cooking method.