1. On April 23, 1914, the state of Florida adopted the Cross of St. Andrew as its official state flag. The design features a red background with a white diagonal cross, and the emblem has been used by Floridians for over a century.

2. In 1956, Miami was the site of the world's first commercial flight of a jet-powered airplane. The British-made de Havilland Comet took off from Miami International Airport and flew to Grand Cayman in the Caribbean.

3. On April 23, 1985, the Florida Keys National Marine Sanctuary was established to protect the coral reef ecosystem and the marine life that calls it home. The sanctuary covers over 2,900 square nautical miles and includes areas along the Florida Keys from Key Largo to the Dry Tortugas.

4. In 2003, NASA launched the Mars Exploration Rover "Opportunity" from Cape Canaveral Air Force Station in Florida. The rover successfully reached Mars and explored the planet's surface for over a decade, sending back valuable data and images to scientists on Earth.

5. On April 23, 2021, the Disney Wish cruise ship began construction at the Meyer Werft shipyard in Germany. The ship is scheduled to make its maiden voyage in 2022 and will feature a variety of Disney-themed amenities and activities for passengers to enjoy.