1. On April 3, 1682, William Penn sailed from England to the colonies, where he would eventually found the state of Pennsylvania. Delaware was originally part of Pennsylvania before becoming its own state.

2. On April 3, 1865, the Battle of Namozine Church took place during the American Civil War, with Union forces defeating Confederate troops in central Virginia. Delaware soldiers fought on both sides during the war.

3. On April 3, 1903, the Wilmington and Western Railroad began operating as a passenger and freight line between Wilmington and Hockessin. The line still runs today as a tourist attraction.

4. On April 3, 1926, the DuPont Theatre (now the Playhouse on Rodney Square) opened in Wilmington. The theater has hosted countless productions, including Broadway shows and concerts.

5. On April 3, 2018, Delaware became the first state to legalize sports betting after the Supreme Court struck down a federal ban. This move allowed Delaware to boost its economy with increased tourism and gambling revenue.