SavingAdvice.com Blog Did you know that Delaware is technically the first state of the United States of America? In December 1787, Delaware was the first of the original 13 colonies to ratify the U.S. Constitution and then become a state. The state capital of Delaware, Dover, can arguably be called the de facto first capital of the first three colonies to become states, but that is up to interpretation. And while the 46 th president of the United State, Joe Biden, was born in Scranton, Pennsylvania, he started his political career in Delaware. The state of Delaware, and its state capital Dover, has deep historical roots that you can learn about via numerous free city events. Here is a list of free things to do in Dover.