May 18, 2018

National HIV Vaccine Awareness Day

HIV Vaccine Awareness Day is observed annually on May 18th. This observance provides an opportunity to recognize and thank the many volunteers, community members, health professionals, and scientists who are working together to find a safe and effective preventive HIV vaccine. It is also a day to educate communities across the nation about the importance of preventive HIV vaccine research.

National Visit Your Relatives Day

National Visit Your Relatives Day reminds us to visit our relatives, especially those we have not seen in a while.

National No Dirty Dishes Day

National No Dirty Dishes Day encourages people to take a break from doing the dishes and spend the time saved doing things for fun.

National Cheese Souffle Day

A cheese souffle is made with egg yolks, beaten egg whites, and cheese and served as a savory dish.

International Museum Day

Every year since 1977 International Museum Day is organized worldwide around May 18. This day is an occasion to raise awareness on how important museums are in the development of society. According to the International Council of Museums, a museum is a non-profit, permanent institution in the service of society and its development, open to the public, which acquires, conserves, researches, communicates and exhibits the tangible and intangible heritage of humanity and its environment for the purposes of education, study and enjoyment.

National Endangered Species Day

National Endangered Species Day, the third Friday in May, is an opportunity to celebrate our biodiversity and efforts to conserve that diversity.

National Defense Transportation Day

National Defense Transportation Day, which occurs annually on the third Friday of May, recognizes the contributions of people who work in the transportation industry and who contribute to the nation's well-being and defense. It is part of National Transportation Week.

National Pizza Party Day

Each year on the third Friday in May, pizza lovers celebrate National Pizza Party Day with friends and family by ordering from their favorite pizzeria.

National Bike to Work Day

In celebration of National Bicycle Month, National Bike to Work Day promotes the bicycle as an option for commuting to work.


The National Association for Stock Car Auto Racing (NASCAR) is an American business venture that sanctions and governs multiple auto-racing sports events.