Public holidays are celebrated by the entire population of Egypt. Holidays in Egypt have many classifications. Some holidays are religious and others are secular, while some can be fixed holidays on the calendar while others are movable. There are four Islamic holidays and two Christian holidays. The National Day of Egypt is celebrated on July, 23 which coincides with the annual celebration of the Egyptian revolution of 1952 when the modern republic of Egypt was declared, ending the period of the Kingdom of Egypt.