September 4th is associated with several holidays and observances. Here are some of the holidays and observances that are celebrated on September 4th:

• National Wildlife Day: This day is dedicated to raising awareness about the importance of wildlife conservation.
• Eat an Extra Dessert Day: This day encourages people to indulge in as many sweet treats as they like.
• Mouthguard Day: This day aims to encourage people to wear mouthguards to reduce the risk of broken teeth and jaws.
• National Macadamia Nut Day: This day celebrates the highly sought-after seed that hails from Australia.
• Newspaper Carrier Day: This day honors the people who deliver newspapers to our doorsteps every day.
• Labor Day: In the United States, Labor Day is a federal holiday celebrated on the first Monday in September to honor and recognize the American labor movement and the works and contributions of laborers to the development and achievements of the United States.

In summary, September 4th is associated with several holidays and observances, including National Wildlife Day, Eat an Extra Dessert Day, Mouthguard Day, National Macadamia Nut Day, Newspaper Carrier Day, and Labor Day.