observance

D-Day is observed in the U.S. in memory of the Normandy landings in France on June 6, 1944, in which American soldiers and other Allied forces fought to end World War II in Europe.

People across the United States celebrate Flag Day on June 14 each year to honor the United States flag and to commemorate the flag’s adoption. On the same day, the United States Army celebrates its birthday.

Father's Day in the United States is on the third Sunday of June. It celebrates the contribution that fathers and father figures make for their children's lives. Its origins may lie in a memorial service held for a large group of men, many of them fathers, who were killed in a mining accident in Monongah, […]

American Eagle Day celebrates one of the most recognizable American national symbols – the once-endangered bald eagle. Each year on June 20th, National American Eagle Day honors our national symbol, raising awareness for protecting the Bald Eagle. The day also encourages the recovery of their natural environments while providing educational outreach.

Columbus Day, which is on the second Monday of October, remembers Christopher Columbus' arrival to the Americas on October 12, 1492. This holiday is controversial because the European settlement in the Americas led to the demise of the history and culture of the indigenous peoples.

While the second Monday of October marks Columbus Day in many parts of the United States, some states instead observe Native American Day, a celebration of North America's Indigenous peoples and their cultures.

Rosa Parks Day is an American observance to honor civil rights activist Rosa Parks, who was known for refusing to give up her seat on a bus. The First Day in December.

National Pearl Harbor Remembrance Day, which is annually on December 7, commemorates the attack on Pearl Harbor, in Hawaii, during World War II. Many American service men and women lost their lives or were injured on December 7, 1941. National Pearl Harbor Remembrance Day is also referred to as Pearl Harbor Remembrance Day or Pearl […]

Join NHLBI, The Heart Truth, and organizations around the country on National Wear Red Day, celebrated each year on the first Friday in February, to bring greater attention to heart disease awareness as the leading cause of death for Americans. Use the poster, stickers, and social media resources below to promote Wear Red Day in […]