Answer: hawaiianislands

AnswerCrossword Clue
HAWAIIANISLANDSOne of them has an Interstate!
HAWAIIANISLANDS1898 annexation
HAWAIIANISLANDSA star on the flag?
HAWAIIANISLANDSCook's final setting
HAWAIIANISLANDSU.S. annexation of 1898
HAWAIIANISLANDSBecame a state in 1959
HAWAIIANISLANDSWhere Captain Cook was killed