Revolution Day is the biggest secular public holiday in Egypt. It is celebrated on July 23. Revolution Day marks the anniversary of the Egyptian Revolution of 1952 which lead to the overthrow King Farouk and establishment of the Republic of Egypt.
July 23 is National Remembrance Day in Papua New Guinea. It is a memorial day observed to honor PNG soldiers and officers who lost their lived during World War I, World War II and other military engagements within Papua New Guinea and abroad.
Seventeenth of Tammuz (Shiv'ah Asar b'Tammuz) is a minor fast day in Judaism. It commemorates the day when the walls of Jerusalem were breached proceeding to the destruction of the Second Temple by the Romans.
Retail Trade Worker's Day is a professional holiday, that is observed in the Russian Federation every fourth Saturday in July. The holiday existed unofficially for a long time, but it was legislatively established only in 2013.
July is National Ice Cream Month therefore many food related holidays celebrated in July are devoted to various types of ice cream. For example, July 23 is National Vanilla Ice Cream Day. It celebrates the basic and most popular ice cream flavor.
National Hot Dog Day is an informal holiday in the United States celebrated on July 23. It was established by National Hot Dog and Sausage Council. Hot Dog Day celebrates hot dogs as one of the staples of American cuisine.