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When Captain Cook arrived in 1778, he ended a long period of isolation. The islands were home to more than half a million people. Westerners introduced syphilis and gonorrhea, and in the following years came typhoid, dysentery, whooping cough, measles, and smallpox. The tragedy played out in miniature in 1824, when a royal delegation from the island including King Kamehameha II and Queen Kamamalu traveled to London on a whaler to seek a British alliance; they were received with polite fascination in England, but within a month measles struck the royal party. Both the king and queen died. The lopsided disease exchange meant that within a century of European contact, the indigenous population of Hawai‘i declined by more than 90 percent.
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