Answer: hawaiianislands

AnswerCrossword Clue
HAWAIIANISLANDS

One of them has an Interstate!

HAWAIIANISLANDS

1898 annexation

HAWAIIANISLANDS

A star on the flag?

HAWAIIANISLANDS
Cook's final setting
HAWAIIANISLANDS
U.S. annexation of 1898
HAWAIIANISLANDSBecame a state in 1959
HAWAIIANISLANDSWhere Captain Cook was killed