1. Emancipation Day: June 19, 1865, also known as Juneteenth, is the day when Union General Gordon Granger arrived in Galveston, Texas and announced the end of slavery in the state. While this date is significant in Texas history, it is also celebrated across the United States as Emancipation Day. On June 19, 1865, Florida became the first state to emancipate slaves in the Confederate states.

2. Baseball Hall of Famer: On June 19, 1942, Al Lopez made baseball history by becoming the first Cuban-American manager in Major League Baseball. He went on to have a successful career with the Cleveland Indians and Chicago White Sox, and was inducted into the Baseball Hall of Fame in 1977.

3. Golden Gate Bridge: On June 19, 1936, the Golden Gate Bridge in San Francisco officially opened to the public. While this iconic structure is not in Florida, it has a connection to the Sunshine State: the cables used to build the bridge were made by the John A. Roebling's Sons Company in Trenton, New Jersey, and the steel for the project came from the Bethlehem Steel plant in Pennsylvania. These companies also supplied materials for the construction of several Florida bridges, including the Sunshine Skyway Bridge in Tampa Bay.

4. World War II: On June 19, 1944, U.S. Forces landed on the island of Saipan in the Pacific during World War II. This battle had significant consequences, as it allowed Allied forces to launch air attacks on Japan and provided a base for B-29 bombers. U.S. and Japanese casualties were high, with around 3,000 Americans and 27,000 Japanese soldiers killed. Many Floridians served in the Pacific during World War II, including soldiers who fought in the Battle of Saipan.

5. Space Shuttle: On June 19, 1983, the Space Shuttle Challenger was launched from the Kennedy Space Center in Florida on the STS-7 mission. This was the first space flight with a female American astronaut, Sally Ride, who went on to become a renowned physicist and astronaut. The mission also launched multiple communication satellites into orbit, and marked a significant achievement in the U.S. space program.