1. Declaration of Independence Signed - On this day in 1776, the Second Continental Congress approved the Declaration of Independence, which eventually led to the formation of the United States of America. Floridians contributed heavily to the war for independence, with many serving in the Continental Army.

2. Florida Becomes a State - On June 20, 1845, Florida became the 27th state to join the Union. Prior to becoming a state, Florida had a tumultuous history, passing between Spanish and British control before finally becoming part of the United States in 1821.

3. First Dodger Spring Training in Florida - In 1948, the Brooklyn Dodgers traveled to Florida for their first spring training camp. This marked the beginning of Florida's long association with Major League Baseball, as numerous teams now conduct their preseason training in the state.

4. First Tropical Storm of the Season - Since June marks the start of hurricane season in Florida, it's not uncommon for storms to form during this time. On June 20, 1957, the first tropical storm of the season formed in the Gulf of Mexico, foreshadowing a busy hurricane season that year.

5. Civil Rights March in St. Augustine - In 1964, civil rights activists led by Dr. Martin Luther King Jr. descended on St. Augustine, Florida, for a peaceful march to protest racial inequality. The march was met with violence from segregationists, including police officers who used dogs and fire hoses to disperse the crowd. Despite the violence, the march helped to spur change in the region and highlight the need for racial justice.