Which was the first state to ratify the U.S. Constitution, on December 7, 1787?

Which state is the smallest by area? Which state has the largest population? Which state has the smallest population? Which is the second-largest state by area? Which state became the 50th state in 1959? Which state became the 49th state in 1959? Which two states became the 47th and 48th states in 1912? How many original colonies became the first U.S. states?