The observance of the North Yemen Revolution Day falls on the 26th of September. Thus, it is sometimes referred to as September Revolution Day. It is a public holiday that commemorates the inauguration of modern-day Yemen.
Islam is a monotheistic Abrahamic religion originated in the Arabian Peninsula 1400 years ago, and spread rapidly to form a majority of the population in the Middle East and many Asian and African countries. Islam now is followed by more than a billion people, making it the second largest religion in the world.