| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | constitution day | United States | Observed on September 17th to commemorate the signing of the U.S. Constitution. | 1 |
| 2 | constitution day | United States | Celebrated on September 17th to commemorate the signing of the U.S. Constitution in 1787 | 1 |
| 3 | constitution day | United States | Constitution Day is celebrated on September 17th in the United States to commemorate the signing of the U.S. Constitution and to promote civic education. | 1 |
| 4 | day | United States | The day typically starts at midnight and ends at midnight. | 1 |
| 5 | land day | United States | Observed on April 22 as a day to promote environmental protection and raise awareness about the importance of conserving land and natural resources. | 1 |
| 6 | referendum day | United States | Referendum day is less common and typically refers to specific state or local ballot measures rather than national issues. | 1 |