1. Delaware was one of the first states to recognize February 29 as a legal date
In 1752, Delaware was one of the first states to recognize February 29 as a legal date, when the British Empire made the switch from the Julian to the Gregorian calendar.

2. Delaware was the first state to ratify the US Constitution on February 29
On February 29, 1787, Delaware became the first state to ratify the United States Constitution, giving it the nickname "The First State."

3. Dover, Delaware's capital, was founded on February 29
Dover, Delaware's capital, was founded on February 29, 1683, by William Penn, the founder of Pennsylvania.

4. Leap year babies have a special place in Delaware history
Delaware natives born on February 29, also known as "leap day babies," have a special place in state history. In 2012, the Delaware State Senate passed a resolution recognizing the contributions of leap year babies to the state.

5. The last arrest made by the Underground Railroad in Delaware took place on February 29
On February 29, 1864, the Underground Railroad, a network of activists and safe houses that helped slaves escape to freedom, made its last arrest in Delaware. Robert Purvis, one of the activists involved, was known for using his fortune to fund the Railroad's operations.