RIYADH — Custodian of the Two Holy Mosques King Salman and Crown Prince Muhammad Bin Salman have sent cables of congratulation Norway’s King Harald V on the anniversary of his country"s Constitution Day. In their congratulatory messages, the Custodian of the Two Holy Mosques and the Crown Prince wished the Norwegian King good health and happiness and the government and people of Norway steady progress and prosperity. Constitution Day is the national day of Norway and is an official public holiday observed on May 17 every year. Among Norwegians, the day is referred to simply as syttende mai, according to Wikipedia.