We have 18 holidays listed for May 28.
National Hamburger Day
The hamburger is a classic staple of western culture.
Abolition Day (Saint Martin)
We've got it all — Saint Martin’s history, interesting facts, and how to observe this day.
Amnesty International Day
Amnesty International implements initiatives to free wrongfully imprisoned people, and convicted offenders, and combat abuse.
Founding of the Democratic Republic of Azerbaijan
Get your blue, green, and red flags ready to observe the Independence Day of Azerbaijan!
International Burger Day
On International Burger Day eat a few, create more, and focus on this glorious meal.
International Day of Action on Women’s Health
Globally, women and organizations mark the day to raise awareness about women’s health and rights.
Julia Pierpont Day
Let’s appreciate and celebrate the efforts of the iron lady, Julia Pierpont, for her altruism.
National Day of Ethiopia
Find out why this day is important in the history of this populous African nation.
National Flag Day Philippines
Honor the memory of the revolutionaries and keep the flag of the Philippines always flying high.
National Senior Health and Fitness Day
The common goal of this day is to help senior Americans stay fit and healthy.
Slugs Return From Capistrano Day
Slugs Return From Capistrano Day is observed on May 28 to show appreciation for slugs.
Whooping Crane Day
Whooping Crane Day is a day to create awareness and campaign against this bird’s extinction.
World Hunger Day
Learn more about world hunger and what you can do to contribute to the collective fight.
World Hunger Day
World Hunger Day is a day to save people from starvation. Observe it with us today!
World Otter Day
Learn more about these charming critters and what you can do to save them.
World Passion Fruit Martini Day
Make your cocktail as funky and fruity as you like — it’s World Passion Fruit Martini Day.